Great white shark VS killer whale, who is stronger?

Black whales also belong to toothed whales. It is nearly 10 meter long and weighs 7 ~ 8 tons. The female is a little smaller, also 6 ~ 8 meters.

Black whales are bold, cunning, cruel and greedy, and they are "lawless thugs" in the vast ocean. The English name of killer whale means killer whale. Many people have witnessed the thrilling scene of killer whales attacking dolphins, sea lions and big whales at sea.

Killer whales have a big mouth, and there are more than 20 sharp teeth with a length of 10 cm ~ 13 cm on the upper and lower jaws. The mouth is wide, showing sharp teeth, which makes it more fierce. The teeth bend inward and backward, and the upper and lower teeth are staggered, similar to the shape of people's hands and fingers crossing together. This not only allows the captured things to escape from the jaws of death, but also tears and cuts the prey. Black whales are easy to identify. There are two oval white spots behind its eyes, which look like two big eyes from a distance; It also has a white area protruding backward on its side, which makes it unique.

Black whales are strong and agile, and can swim fast, with a speed of 30 nautical miles per hour. When the male whale swims, its dorsal fin is as high as 1.8 meters, which is quite similar to the shape of the ancient weapon-"Ji" standing upright on the sea surface, so the killer whale is also called "killer whale".

The black whale is a veritable marine tiger. Its Dutch and English names mean "whale killer", which shows its ferocity and ferocity. The black whale is also called "killer whale" because when the tall dorsal fin of the male killer whale sticks out of the water, it is very similar to the shape of an ancient weapon-a halberd standing upright on the sea.

Someone found a dozen dolphins and the same number of seals in the stomach of a killer whale, which is enough to prove the cruelty, cruelty and gluttony of killer whales. In fact, the blue whale, the king of animals, can't escape the bad luck of being hunted even if it meets a group of killer whales. When besieging the blue whale, the killer whale has a very precise division of labor: some killer whales are on its sides, two killer whales are in front of it, and the other two are behind it to prevent the blue whale from escaping; Other killer whales forced the blue whale to sink underwater and prevented it from breathing out of the water; There are also some killer whales watching under its belly to prevent it from diving away. The blue whale was bitten off its dorsal fin first, and its caudal leaf was torn off, making it impossible to swim. At this time, the killer whales scrambled to bite the meat of the blue whale in chunks and had a delicious meal.

Killer whales become the overlord of the sea because they have the corresponding conditions: first, their teeth are sharp, their teeth bend inward and backward, and their upper and lower teeth are staggered, which not only makes it difficult for their prey to escape, but also tears and cuts their prey; Second, it has the ability to hunt prey quickly and accurately. The killer whale's tall dorsal fin can act as a "rudder" to ensure the balance of the body when chasing; Third, it is insatiable and preys on carnivorous life. Almost all other animals in the ocean can be its food, and it is very cunning, and there are fashions to trap prey; Fourth, killer whales are social animals, often moving in small groups of 3-4, often reaching 30-40. Of course, the power of collective hunting has greatly increased.

In addition, killer whales have a strange hobby, that is, they like to eat whales' lips and tongues best. Someone observed 35 captured gray whales and found that 7 of them were partially or completely eaten by killer whales. Obviously, these gray whales were attacked by killer whales. Sometimes, when whales are killed by whaling guns, floating on the sea surface or towed away by ships, killer whales will take advantage of the fire to get into the mouth of dead whales and prey on their lips and tongues, even with guns. It's really a wry smile.

It is amazing that such a fierce killer whale is actually a "master of language" in the whale kingdom. Research shows that killer whales can make 62 different sounds, and different sounds have different meanings. Black whales living in different sea areas, even different killer whales, use different language tones, which are similar to human dialects, so researchers call them "killer whale dialects". Sometimes, a large number of fish appear in a certain sea area, and killer whales come from all directions to feed. But their calls are different from each other. Researchers speculate that killer whales can talk through "language". As for how they understand each other's "dialects", whether they are equipped with translators like humans is still a mystery.

It is worth mentioning that although killer whales are fierce, they have never witnessed or heard of cases of killer whales hurting humans, and the domesticated killer whales are gentle and even perform many wonderful programs.

Black whales are also called "killer whales". Mammals, Cetaceans, Dolphinidae. China is widely distributed in the world's oceans, from the Yellow Sea and Bohai Sea to the South China Sea.

Ask you who is the overlord in the sea? You may not hesitate to answer: shark. Wrong. The real overlord in the sea is the killer whale, and the shark is just a side dish in front of the killer whale.

Black whales are smaller cetaceans. Its maximum length is only 10 meter and its weight is 7-8 tons. It is bold, cunning, cruel, greedy and omnivorous. With its speed of 55 kilometers per hour, it can double its swimming speed when chasing prey. No matter what animals in the ocean are found by it, they can't escape from the tiger's mouth, from fish, shrimp and seabirds to sharks, walruses and even whales. Its appetite is amazing. Someone once found 13 dolphins and 14 seals in the stomach of a 7-meter killer whale. It has also been found that a killer whale can swallow 60 young whales at a time. It is speculated that killer whales eat at least 4% of their body weight every day, that is to say, an 8-ton killer whale eats 0.32 tons of food every day, which shows that it is very harmful to marine animals.

Black whales are bold and have a wide range of activities. Other cetaceans generally do not communicate between the northern and southern hemispheres, nor between the Pacific Ocean and the Atlantic Ocean. Only killer whales are not restricted by national boundaries. They can swim freely from the Antarctic Sea to the Arctic Ocean, from the eastern hemisphere to the western hemisphere, and "swim here" wherever they can swim.

Black whales are fierce, cruel and cunning. When they meet a whale, they "organize". First, they will surround the whale, and then two killer whales will rush up and bite the whale's two fins, making it difficult for it to escape. Then other killer whales swarmed in and chewed fiercely. After eating for a period of time, there will be killer whales to replace the whales that bite the fins and let them enjoy the food. Minke whales, humpback whales, gray whales and even the biggest blue whales are often attacked by them and become things in their stomachs. Sometimes they find that the whale hunting boat is dragging the dead whale, regardless of the bombardment of the whale gun, it rushes into the whale's shell, eats the whale oil inside, and then flies away.

When killer whales meet a fish, they don't immediately pounce on it. Instead, a group of killer whales spread out to surround the fish and swim around the periphery, driving the fish to gather in the encirclement, and then everyone rushed into the circle in turn to have a good meal. If a seal or penguin stands on the ice floe, the killer whale will jump to the edge of the ice floe and press the ice floe against itself with its body. The animal on the ice will be unstable and will pounce on it when it slides to its mouth.

The most spectacular scene is the scuffle between killer whales and walruses. Walruses will gather together quickly when they meet killer whales, with young walruses in the middle and walruses living outside, ready to fight with killer whales; Killer whales first lined up in front of walrus with 5-6 whales to attract walrus' attention, and then other killer whales sneaked around behind walrus and launched a sudden attack. When the walruses were in chaos, killer whales swarmed ahead, biting and killing walruses everywhere, and the waves were stained with blood.

Although the killer whale is fierce and cruel, it is a friend of mankind. So far, there is no record of killer whales attacking humans in the world. On the contrary, because of its wisdom, some people train killer whales to serve mankind. For example, people in coastal tourist areas train killer whales for tourists' entertainment When killer whales hear the call signal, they will immediately swim to the shore to let tourists ride on their backs and swim in the water, and then they can send people back to the shore according to the instructions.

Fishermen at the Australian whaling base train killer whales to help catch other large whales. Usually, they let the trained killer whales act as detectives on the high seas. Once a whale is found, several killer whales will keep an eye on it and not let it escape. In addition, some killer whales will return to the port to report. After returning to the harbor, they jumped and rolled around the base to attract people's attention. Whaling ships will lead the way when they set sail. After the ships shelled the whales, they would alternately jump on the injection holes that oppressed the injured whales, making them stop breathing and even dive under the injured whales. When whaling ships subdue injured whales, as long as fishermen give them killer whales' favorite whale tongues, they will be satisfied.

Because killer whales are fierce and violent, other marine animals are frightened by the news. Therefore, some fishermen recorded the cries of killer whales and played them by the farms to drive out the natural enemies of aquaculture and protect aquaculture from harm.

-Source: China Ocean News (main hall)

-

The black whale is a veritable marine tiger. Its Dutch and English names mean "whale killer", which shows its ferocity and ferocity. The black whale is also called "killer whale" because when the tall dorsal fin of the male killer whale sticks out of the water, it is very similar to the shape of an ancient weapon-a halberd standing upright on the sea.

Someone found a dozen dolphins and the same number of seals in the stomach of a killer whale, which is enough to prove the cruelty, cruelty and gluttony of killer whales. In fact, the blue whale, the king of animals, can't escape the bad luck of being hunted even if it meets a group of killer whales. When besieging the blue whale, the killer whale has a very precise division of labor: some killer whales are on its sides, two killer whales are in front of it, and the other two are behind it to prevent the blue whale from escaping; Other killer whales forced the blue whale to sink underwater and prevented it from breathing out of the water; There are also some killer whales watching under its belly to prevent it from diving away. The blue whale was bitten off its dorsal fin first, and its caudal leaf was torn off, making it impossible to swim. At this time, the killer whales scrambled to bite the meat of the blue whale in chunks and had a delicious meal.

Killer whales become the overlord of the sea because they have the corresponding conditions: first, their teeth are sharp, their teeth bend inward and backward, and their upper and lower teeth are staggered, which not only makes it difficult for their prey to escape, but also tears and cuts their prey; Second, it has the ability to hunt prey quickly and accurately. The killer whale's tall dorsal fin can act as a "rudder" to ensure the balance of the body when chasing; Third, it is insatiable and preys on carnivorous life. Almost all other animals in the ocean can be its food, and it is very cunning and has the fashion of trapping prey; Fourth, killer whales are social animals, often moving in small groups of 3-4, often reaching 30-40. Of course, the power of collective hunting has greatly increased.

In addition, killer whales have a strange hobby, that is, they like to eat whales' lips and tongues best. Someone observed 35 captured gray whales and found that 7 of them were partially or completely eaten by killer whales. Obviously, these gray whales were attacked by killer whales. Sometimes, when whales are killed by whaling guns, floating on the sea surface or towed away by ships, killer whales will take advantage of the fire to get into the mouth of dead whales and prey on their lips and tongues, even with guns. It's really a wry smile.

It is amazing that such a fierce killer whale is actually a "master of language" in the whale kingdom. Research shows that killer whales can make 62 different sounds, and different sounds have different meanings. Black whales living in different sea areas, even different killer whales, use different language tones, which are similar to human dialects, so researchers call them "killer whale dialects". Sometimes, a large number of fish appear in a certain sea area, and killer whales come from all directions to feed. But their calls are different from each other. Researchers speculate that killer whales can talk through "language". As for how they understand each other's "dialects", whether they are equipped with translators like humans is still a mystery.

It is worth mentioning that although killer whales are fierce, they have never witnessed or heard of cases of killer whales hurting humans, and the domesticated killer whales are gentle and even perform many wonderful programs.

—— Excerpts from Ocean World 1999 and 12 (Author: Haizi)

-

"Mob" in the Sea-Killer Whale

Black whale is fierce, daring, cunning, cruel and greedy, and is a typical marine "thug". It can attack sea lions, dolphins, seals, walruses and even large baleen whales (such as blue whales), and they all dare to attack. Of course, squid, penguins, fish, seabirds and other marine animals are also their hunting targets. Killer whales make terrible calls when chasing animals, similar to the roar of tigers in the mountains. Even hundreds of tons of whales will be frightened and flee. Killer whale's name, so go get it.

The sailors witnessed several killer whales jointly attacking a baleen whale. Among them, three male killer whales attacked baleen whales, and two other female killer whales and several trailing cubs watched the battle. In less than an hour, the whale was killed. Other killer whales on the sidelines swarmed, tearing apart the whale's body and eating it separately. Attacking large whales is often a collective action of dozens of killer whales, biting their heads, tails and other parts respectively and whipping them with tail fins. Sometimes groups of sea lions or seals feed in the water, and killer whales will suddenly rush in. Sea lions and seals ran for their lives in fear, and killer whales rushed into their flocks, and immediately the sea was dyed red with blood, and corpses were everywhere. Even if sea lions and seals bask in the sun on ice or rocks, killer whales can go ashore and drive them to the sea and then prey on them. Black whales are also very cunning. Sometimes they lie prone and float on the sea like corpses. When seabirds or marine animals approach, killer whales will suddenly turn over and catch them. Black whales are also very good at catching fish. They surrounded the fish, rushed into the fish in turn to choose fertilizer to eat, and then dispersed after sweeping the fish.

Black whale, with smooth skin and black back, has a thick layer of fat under the skin to prevent the body from emitting heat and adapt to life in cold seawater. The abdomen is white, the back is black and white, and the streamlined figure is quite beautiful. The nose grows on the top of the head, which is very suitable for breathing and breathing. The nose has a flap that can be opened and closed freely, so it will not be invaded by seawater. Black whales raise their heads when breathing in the water, and a foamy aerosol is ejected from their nostrils to form a water column. The exhaled hot air and the cold air outside condense into a fog column and spray out of the water.

The male killer whale is about10m long,1.8m high and weighs 7-8 tons. The dorsal fin protrudes out of the water and stands upright on the water like an ancient weapon "Ji", so it is also called "killer whale". Female killer whales are slightly smaller, about 8 meters long and weigh 5-6 tons. Black whales swim very fast, and can swim 30 nautical miles per hour. Black whales are mammals and need to breathe with their lungs. They dive into the water in shallow water for about half a minute at a time. Dive for 4-5 times in shallow water, and dive for 1-4 minutes in deep water, with a maximum of 15 minutes. You can go several hundred meters below the water.

Black whale breeding is not monogamous. A young male killer whale and several female killer whales form a reproductive group, and the size of this reproductive group depends on the fighting ability of male and same-sex couples. There are more females in the strong and fewer females in the weak, ranging from 30-40 to 3-5. Black whales have no fixed breeding season and can mate all year round. Pregnant female killer whales are pregnant for about a year, and only one child is born at a time, and there are few twins. The newborn killer whale is about 24 meters long and can eat by itself after one year. Growing to more than 6 meters long, at sexual maturity, the "father" drove the male killer whale out of the reproductive group and let it live a single life. When they are strong, they will fight with the "men" of other killer whales, grab their spouses, and organize reproductive groups separately.

Black whales are fierce, but sometimes they cooperate with others. There is a whaling base near the coast of New South Wales, Australia. Every year, when humpback whales migrate through this area, some killer whales will quickly swim near the base, where they will play and swim to attract people's attention. When the base whaling ship sets sail, it automatically acts as a guide to guide the whaling ship to whales. At this time, some other killer whales in the sea surrounded the humpback whales and prevented them from escaping. When humpback whales are shelled by whaling ships, killer whales help people on board subdue them: two killer whales swim under the humpback of the injured whale to prevent humpback whales from diving into the water, and the other two killer whales jump into the jet of the injured whale to prevent them from breathing and wheezing. When people catch humpback whales, killer whales are allowed to eat their tongues as a reward.

As early as World War I, Russian and British troops tried to test seals and sea lions to detect enemy submarines, but the success rate was not great. Today, the U.S. Navy's underwater combat center in Hawaii spends millions of dollars every year to train a marine animal-killer whale. "Ben" is one of them. Now it has been trained to detect enemy submarines and has "skills" such as navigation and mine clearance. In addition, the United States has successfully trained killer whales to salvage relics on the seabed. Some scientists imagine that killer whales will be trained as "police dogs" in underwater pastures to manage artificial fish and shrimp farms and scare away other marine animals that endanger fish and shrimp. Near Catalina Island in the United States, a large number of squid groups come here once a year to lay eggs, which is a good opportunity for fishermen to catch squid. At this time, sea lions, giant whales, seals and other marine animals also followed, which had a great impact on fishermen's squid fishing. Fishermen recorded the cries of killer whales and played them at sea. The marine animals ran away when they heard the sound, and they were afraid to go near. There is a river rich in giant salamander in Alaska, and beluga whales go upstream with the rising river. At most, hundreds of beluga whales compete with fishermen for salmon. Even if the fishermen used bombs, it would not help to drive the beluga whales away, but after playing the recording of the killer whales, the beluga whales fled one after another. This not only protects the fishery, but also avoids killing white whales, which really kills two birds with one stone.

Black whales can be found in all sea areas on the earth, but the killer whales in Japan's offshore, Antarctic and Norwegian to Arctic waters have the largest number; There are also many killer whales along the coast of China.

The most ferocious marine animal-killer whale

plum

Black whale is a large toothed whale. Because of its fierce temperament, it is also called evil whale, killer whale, killer whale and killer whale. Its body is strong, large, spindle-shaped and smooth. There is a thick layer of fat under the skin to keep the body warm. The body length is about 600- 1000 cm and the weight is 5000-8000 kg. The body color is black and white, the back is painted black, but there is a saddle-shaped gray spot behind the fin, a spindle-shaped white spot behind each eye, and most of the ventral surface is white. The head is round, with no protruding snout, and the nostrils are on the right side of the head, with a flap that can be opened and closed freely. When it floats to the surface of the water, it opens its flaps to breathe, spewing out foam-like aerosol, and when it meets the cold air on the sea surface, it becomes a water column. The forelimbs become a pair of fins, which are very developed, and the hind limbs degenerate and disappear. Powerful triangular dorsal fin, standing high in the center of the back, is very conspicuous. The male beast can reach 1.5 meters in height, which is both an offensive weapon and a rudder. The mouth is very big, and there are 40-50 big conical teeth on the upper and lower jaws. It looks fierce and can swallow a sea lion whole. Black whales are distributed in the oceans of the world, most of which are near the North Pole and South Pole. In China, they are distributed in Bohai Sea, Yellow Sea, East China Sea, South China Sea and Taiwan Province Province Sea. Black whales like to live in cold water at 0℃ to 12- 13℃. There are few in warm oceans, and even if there are, they often dive into deep water with low water temperature. It is very mobile, and it can swim 100 kilometers a day, but it often appears in waters within 30 kilometers from the coast and rarely swims to the ocean. Swimming is also very fast, with a speed of 54 kilometers per hour. Diving time is also very long, more than 30 minutes at most. In the shallow waters of the bay, it also likes to hook seaweed with the notch on its tail and make a "whirring" sound. Soon, it was covered with translucent seaweed.

Although its teeth are strong, they are not as sharp as those of sharks, so it is mainly used for grasping rather than chewing, and the food it holds is swallowed whole. The main prey are all kinds of marine animals, such as dolphins, seals, sea lions, seals, walruses and so on. Sometimes there are penguins, squid, cod, flounder, mackerel, sardines and other marine fish. It is recorded that a killer whale ate 13 dolphins and 14 seals. Swarms of killer whales even dare to attack baleen whales ten times their size. The scene is like a wolf hunting a lonely deer. First, they surround their prey from top to bottom, biting off their dorsal fins and tails, making it difficult for them to swim, then tearing off large pieces of meat and biting off their lips and tongues. Because killer whales are so fierce, large whales such as right whales, fin whales, humpback whales, gray whales and blue whales in the ocean are also afraid of tigers. When they saw them from a distance, they hurried to avoid them and ran away. Black whales also use skills when hunting. First of all, they will float motionless on the sea, belly up, much like a dead body. When squid, seabirds and marine animals approach it, they will suddenly turn over and open their mouths to eat them.

Black whales like to live in groups. There are small groups of 2-3 whales and large groups of 40-50 whales. They always stay quietly on the water for 2-3 hours every day. Because their lungs are filled with enough air, they can float safely on the sea surface, exposing their huge dorsal fins. The pectoral fins among group members often keep in touch, showing intimacy and unity. If one member of the group is injured or unconscious in an accident, other members will come to help and let them float on the sea with their bodies or heads, even when sleeping. This is to take care of each other and keep a certain degree of sobriety.

If humpback whales are "singers" in cetaceans, then killer whales are "language masters" in cetaceans. They can make 62 different sounds, which have different meanings. For example, when it preys on fish, it will make an intermittent "giggle" sound, just like the sound made by pulling rusty iron doors and windows. After being threatened by this sound, the fish will become abnormal and will not respond to the appearance of killer whales, instead of panicking and fleeing in all directions, so they will be caught by killer whales effortlessly. Black whales can not only emit ultrasonic waves to find fish by echo, but also judge the size and swimming direction of fish. This ability is very important for carnivores living in the ocean. The bottom of the sea is very dark, and it is difficult to see distant prey in this environment.

When the killer whale plays in the water, its sound will turn into a "wow" whistle. On the rippling sea, it gallops and rolls for a while, ..., in addition, it often goes to the pebble beach and spends about 10-30 minutes rolling up and down, making all parts of its body rub on the pebble pile, at the same time emitting a complex and pleasant feeling.

Black whales living in different sea areas, or different killer whales, use different tones of "language", just like human local dialects. Sometimes, when there is a lot of food in a certain sea area, killer whales will come from all directions to hunt, but their calls are different. They can talk to each other through "language", but how they understand each other's "dialect" is still unclear.

People who travel at sea often describe the killer whale as a fickle siren, fishermen call it a "sea overlord", and movies, plays and other works of art describe it as a "god of revenge", all of which imply that the killer whale is a man-eating animal. In fact, this is entirely human imagination, because although killer whales are fierce gluttonous beasts in the sea, there has never been a record of eating people in history, and even a case of biting people has never been heard of. Strangely, it is not only harmless to human beings, but also friendly. In the aquarium, it can be domesticated, smart and obedient, and it can also learn many skills and perform various programs. The most wonderful program is "Welcome": as the bell rings, the huge head will emerge from the water and slowly swim to the audience to show "welcome", or let the breeder ride around on his back, or even let the breeder put his head in his huge mouth. "Jump into the water to swallow fish": breaking the surface, with his mouth open, jumped to a height of more than 5 meters and swallowed a big fish hanging there; "Jump in the fast swimming": Swim quickly along the edge of the pool, break the waves and sometimes jump out of the water; "Come as soon as you can": Swim over immediately when you hear the call signal; "Cats catch mice": killer whales have their bellies up and their pectoral fins out of the water. The animal trainer sat on his chest, holding his teeth in one hand, and then swam with the killer whale several times and jumped into the water. At this time, the killer whale caught up from behind and carried him on his back again, repeating this action many times. In fact, killer whales have become so docile because people have mastered one of its weaknesses: once they leave their own kind and live alone, their courage becomes very small. Of course, after the wonderful performance, delicious dishes such as frog fish and tuna are also essential as rewards.

Killer whales are domesticated to accomplish some special tasks because of their outstanding intelligence. For example, the U.S. Navy's underwater combat center in Hawaii spends millions of dollars every year to train an animal unit. Killer whales are one of the main members, and they can do deep diving, navigation, demining and other work. People also train killer whales to salvage relics at the bottom of the sea, play the sound of killer whales to scare away harmful animals in the sea, or treat them as police dogs in the sea to care for and manage farmed fish.

Black whales can mate all year round. Females give birth every 3-5 years. The gestation period is 1 year, and each fetus gives birth to 1 offspring. The lactation period also needs about 1 year, and the life span is about 20-35 years. During the period of 1-2 years after birth, when the larvae are hungry or call for females, they can only make a hoarse voice. Later, with the growth of age, they gradually imitated the voices of adults and improved and enriched their calls. However, because the language of killer whales is complex and changeable, it takes at least five years for young whales to fully master the "language" of adults.

Black whales belong to mammals, Cetaceans, Speaks and Black whales in taxonomy. Pilot whales are closely related to dolphins and can also be regarded as larger dolphins. Their common feature is that they have small mouths and no beaks. There are sharp and developed conical teeth in the upper and lower jaws, but the number is relatively small, with less than 15 on each side of the upper and lower jaws. The number of different kinds of teeth is also different, and the least is only 1 tooth. The left and right sides of the skull are asymmetrical, with only 1 external nostril. There are five toes on the flipper. The sternum is very big. No collarbone. No cecum. Their sizes also vary greatly, ranging from 1 meter to 20 meters.

Black whale black whale

Killer whale (Linnai, 1758)

Size: born 2. 1-2.4m, adult 8.5 (female) -9.8m (male), weighing 7500- 1 10,000 kg.

Morphological characteristics: the dorsal fin is obviously tall (female 0.9 m sickle, male 1.8 m triangle), and the kiss is blunt and short, which is not obvious. The pectoral fin is large and oval, and the male body length can often reach two meters. The contrast between black and white is one of the most recognizable features. It is mainly black, but it is white under the caudal fin of the eyes, on both sides of the genitals and on the abdomen. There are gray spots on the back of dorsal fin. There are 10- 12 jaws on both sides, which are large and curved inward.

Natural History: According to textual research, there are two kinds of killer whales on the east coast of the North Pacific from Washington State to Alaska, one is resident and the other is transitional. Their ecology, body color and appearance are different. Residents near the US-Canada border mainly eat fish, while transitional people eat marine mammals. Its social structure is very stable, and it is the most stable person except human beings. Individuals can stay in the birth group all their lives. There are males and females, young whales and so on. Each group has its own dialect, which can be recognized. Each group can have 1-55 whales. Generally, the resident group is larger than the transitional group.

Distribution: In the world, there are some records of entering Danshui River, but most of them are found in the coastal waters of cold water areas.

Confusion: This species is large, with special black-and-white patterns, and easy to identify, but in the distance, a group of killer whales without towering dorsal fins of male individuals may be similar to patterned dolphins and pseudo-killer whales.

Black whale is fierce, daring, cunning, cruel and greedy, and is a typical marine "thug". It can attack sea lions, dolphins, seals, walruses and even large baleen whales (such as blue whales), and they all dare to attack. Of course, squid, penguins, fish, seabirds and other marine animals are also their hunting targets. Killer whales make terrible calls when chasing animals, similar to the roar of tigers in the mountains. Even hundreds of tons of whales will be frightened and flee. Killer whale's name, so go get it.

The sailors witnessed several killer whales jointly attacking a baleen whale. Among them, three male killer whales attacked baleen whales, and two other female killer whales and several trailing cubs watched the battle. In less than an hour, the whale was killed. Other killer whales on the sidelines swarmed, tearing apart the whale's body and eating it separately. Attacking large whales is often a collective action of dozens of killer whales, biting their heads, tails and other parts respectively and whipping them with tail fins. Sometimes groups of sea lions or seals feed in the water, and killer whales will suddenly rush in. Sea lions and seals ran for their lives in fear, and killer whales rushed into their flocks, and immediately the sea was dyed red with blood, and corpses were everywhere. Even if sea lions and seals bask in the sun on ice or rocks, killer whales can go ashore and drive them to the sea and then prey on them. Black whales are also very cunning. Sometimes they lie prone and float on the sea like corpses. When seabirds or marine animals approach, killer whales will suddenly turn over and catch them. Black whales are also very good at catching fish. They surrounded the fish, rushed into the fish in turn to choose fertilizer to eat, and then dispersed after sweeping the fish.

Black whale, with smooth skin and black back, has a thick layer of fat under the skin to prevent the body from emitting heat and adapt to life in cold seawater. The abdomen is white, the back is black and white, and the streamlined figure is quite beautiful. The nose grows on the top of the head, which is very suitable for breathing and breathing. The nose has a flap that can be opened and closed freely, so it will not be invaded by seawater. Black whales raise their heads when breathing in the water, and a foamy aerosol is ejected from their nostrils to form a water column. The exhaled hot air and the cold air outside condense into a fog column and spray out of the water.

The male killer whale is about10m long,1.8m high and weighs 7-8 tons. The dorsal fin protrudes out of the water and stands upright on the water like an ancient weapon "Ji", so it is also called "killer whale". Female killer whales are slightly smaller, about 8 meters long and weigh 5-6 tons. Black whales swim very fast, and can swim 30 nautical miles per hour. Black whales are mammals and need to breathe with their lungs. They dive into the water in shallow water for about half a minute at a time. Dive for 4-5 times in shallow water, and dive for 1-4 minutes in deep water, with a maximum of 15 minutes. You can go several hundred meters below the water.

Black whale breeding is not monogamous. A young male killer whale and several female killer whales form a reproductive group, and the size of this reproductive group depends on the fighting ability of male and same-sex couples. There are more females in the strong and fewer females in the weak, ranging from 30-40 to 3-5. Black whales have no fixed breeding season and can mate and get pregnant all year round. /TD & gt；