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At present, there are about 6.5438+0.5 million known animal species. It can be divided into invertebrates and vertebrates. Scientists have identified more than 46,900 species of vertebrates. Including carp, yellow croaker and other fish animals, snakes, lizards and other reptiles, as well as familiar birds and mammals. fish

Features: aquatic animals (can only live in water). The skin is covered with scales and belongs to warm-blooded animals. A warm-blooded animal with fins (which can swim in water) breathes through its gills. In vitro fertilization is mainly ovoid, but also viviparous and ovoviviparous. There are many kinds of fish, mainly divided into cartilage. For example, sharks are characterized by tough skin, tiny scales, no swim bladder, asymmetric caudal fin, five pairs of gills and no gill cover. Examples of hard bones: characteristics of rays: bones are hard bones, and there are many mucous glands on the skin, which are covered with bone scales and have swim bladders.

batrachians

(Amphilia) Features: It needs to spend its infancy in the water. It has a skeletal structure adapted to land, with limbs, moist skin and many glands. The body has no scales and body hair. The tongue is forked, inverted and can extend outward. fish

Mating and fertilization are carried out in water. Larvae breathe through gills, while adults breathe through skin, inner wall of mouth and lungs. Classification of Amphibians: Anura: Toad Features: It has a skeletal system adapted to land life, and its body, trunk and limbs are split. The forelimb has four toes, and the hind limb has five toes and webbed toes. The hind limbs are suitable for swimming and jumping, but the main respiratory organs are the inner wall of the mouth and the skin. There is a tail example: salamander features: a skeletal system adapted to land life, and a slender body.

reptile

Characteristics: terrestrial animals. Their skin is covered with scales or shields. They have waterproof skin and lose water. They belong to temperature-changing animals (their body temperature changes due to external temperature or heat source). They are mainly distributed in warmer areas of the earth. They are fertilized, oviparous or viviparous in vivo. They lay eggs on land. Eggs are wrapped in waterproof shells. The classification of reptiles testbyfindwo has an example of podded: turtle characteristics: hard shell. The upper and lower jaws have no teeth, but they have horny sheaths. The eggs have been laid. They can be divided into terrestrial, aquatic or marine life. For example: Cobra's characteristics: no limbs, shoulder straps and sternum. No active eyes, face and external auditory canal. The end of the tongue is bifurcated. Strong elasticity. The skin has scales, and it can swallow prey larger than its own body diameter. The organs of snakes are specialized and the left lung is degenerated. Snakes shed their skin regularly, which can make them grow constantly and is beneficial to reproduction.

bird

Features: The whole body is covered with feathers, the body is streamlined and has a horny beak. The eyes are on both sides of the head, and the neck is long and flexible, which can turn 270 degrees. The forelimbs are specialized into wings, and the hind limbs have scaly skin and four toes. Warm-blooded animals (can generate heat through their own physiological processes, and can maintain a high and constant body temperature even if the outside temperature is very low). The average body temperature is about 10 degrees higher than that of mammals (. The skin is thin and soft, which is beneficial to the strenuous exercise of muscles. (2) vigorous metabolism and constant body temperature. Persistent high body temperature promotes the speed of metabolism in the body. Constant temperature reduces the dependence of animals on external temperature conditions and gains the ability to move and survive at night in the polar continent. (3) The nervous system and senses are developed. Birds have developed brains, cerebellums and midbrains. The cerebral hemisphere is larger, which is mainly due to the increase of striatum at the bottom of the brain. In birds, striatum is an advanced part of managing sports, and it is also related to some complicated living habits. Experiments show that after a part of striatum is removed, its normal excitement and inhibition are destroyed, vision is affected, and courtship and nesting habits are lost. Birds have underdeveloped cerebral cortex and developed cerebellum, which is related to the coordination and balance of bird flight movements. (4) Having perfect breeding methods and behaviors (nesting, hatching and brooding). 2. Classification of Birds (1) The main characteristics of the flat-chested suborder are: strong hind legs, flat chest, no keel process and no flight ability; Feathers are distributed all over the body, and there is no distinction between feather areas and bare areas. Feather branches have no hooks, so they don't form feathers. Common species are ostriches and chicks. (2) The medium and large birds of Penguina have a series of characteristics to adapt to diving life. The forelimbs are fin-shaped and suitable for paddling. Scaly and flaky feathers (short axis and narrow feathers) are evenly distributed on the body surface. The tail is short, the legs are short and move to the back of the body, and there is a bun between the toes to adapt to swimming life. When walking on land, the body is almost upright and swings from side to side. The subcutaneous fat is developed, which is conducive to maintaining body temperature in cold areas and water. The bone is heavy and has not expanded. The sternum has a well-developed keel-like process, which is related to the forward stroke. Swim fast. The distribution of this use is limited to the southern hemisphere. The representative is the emperor penguin. (3) The breastplate usually has developed wings and is good at flying. The keel suddenly reaches, and the last 4 ~ 6 coccygeal vertebrae heal into one coccyx. Generally, it has an inflatable skeleton, and normal feathers develop well, forming feathers, and the body surface is divided into feather areas and bare areas. Most males have no mating organs. There are many kinds of birds in this category. For the convenience of research, we can discuss their groups from two aspects. On the one hand, it is divided into seven ecological types according to ecological types: swimming birds, wading birds, quail chickens, pigeons, climbing birds, raptors and songbirds. Birds: Beaks are flat, wide or pointed, legs are short and webbed, and wings are strong or degenerate. Wading birds: long and thin beaks, long feet and toes, undeveloped fins and strong wings. Quail chicken: the peck is short and powerful, the claws are strong, and the wings are short and round. Pigeons and pigeons: short beak, wax film at the base, short and healthy feet and developed wings. Crawler: The beak is hard, the feet are short and healthy, the toes are right and the wings are developed. Raptor: beak is strong and hooked, foot is strong, claws are pointed and hooked, wings are strong and good at flying. Songbirds: Beaks are different, feet are short and thin, and wings are developed. On the other hand, according to the characteristics of morphological structure, it is divided into several purposes to study. The following are some common purposes. Pelodiformes: move forward everywhere, with a complete poof in the middle; The beak is hooked and has a well-developed laryngeal sac. Young birds belong to late birds and swimming birds, such as cormorants. Crane orders: long neck, long beak, long legs, three toes in front and one behind, and four toes in the same plane. Young birds belong to late-maturing birds, involving birds, and the common species are egrets. Zoology: the mouth is flat, the carapace is thickened, and there are comb-like protrusions on the edge; Legs are short and backward, toes are three in front and one in back, webbed between toes, and wing mirrors are often found on male wings; Male birds have mating devices; Young birds are early birds and swimming birds. Common species are swans and wild ducks. Hawkiformes: the mouth has a pointed hook, developed claws and strong flying ability; Sharp vision, raptors and chicks are all late birds. Common species are kites, kestrels and golden eagles. Chicken shape order: strong; The beak is short and conical; Short and round wings, good at walking; The male bird has a crown of meat on his head and bright feathers; The behavior during the breeding period is complex, and quail chickens and young birds belong to early adult birds. Such as brown eared pheasant, golden pheasant with red belly, etc. Crane order: beak is long, neck is long, legs are long, toes are three in front and one in the back, webbed between toes is underdeveloped, and the position of hind toes is high, which is not on the same plane as other three toes. Young birds are early birds, involving birds. Common species are red-crowned crane and gray crane. Pigeon: short beak with wax film; Four toes in the same plane, short feet, healthy, good at walking; The crops are developed, and the chicks are late-maturing birds or early-maturing birds, which are pigeons. Common species are pigeon, grouse and so on. Owls: powerful beak and claws, hooked; The head is big, the eyes are big and forward, and the feathers around the eyes form a face plate; Ear holes are large, with ear feathers and keen hearing; The fourth place can be reversed; Young birds are late-maturing birds, raptors. The main species are long-eared owls and short-eared owls. ? Shape: the mouth is conical, suitable for pecking wood; The tongue has a long horny hook; Toes are two front and two back; Young birds are late-maturing birds, and they are climbing birds. Common species such as spotted woodpecker. Passeriformes: sound tube and sound bone are developed; Toes are in front and behind, on the same plane, suitable for nesting. Young birds belong to late adults and songbirds. Common species are larks and house swallows.

mammal

Features: there is a spine connected by many vertebrae in the body; Full of hair, chewing and digesting with your mouth can improve the intake of energy and nutrition; Viviparous (except platypus and echidna), breastfeeding; Constant temperature. It can also keep the body temperature relatively constant when the environmental temperature changes, thus reducing the dependence on the external environment and expanding the distribution range; The skull is bigger and the brain is quite developed, which surpasses other animals in intelligence and adaptation to the environment; The inner limbs are strong and sensitive, and have the ability to move quickly; The left and right ventricles of the heart are completely separated; Teeth are divided into incisors, canines and buccal teeth. Mammalian classification 1. The main feature (1) is covered with hair and has the ability to move quickly on land. Hair is unique to mammals, and mammals generally change their hair twice a year: spring and autumn. Molting is the adaptation of mammals to seasonal changes. (2) oral chewing and digestion. The digestive tract is highly differentiated, with developed digestive glands and diversified digestive enzymes. Mammalian teeth can be divided into incisors, canines and molars. The type and number of teeth is one of the bases of mammalian classification. (3) The body temperature is constant and the dependence on the environment is reduced. mammal

(4) It has a highly developed nervous system and senses and strong coordination ability. Mammalian nervous system is characterized by the enlargement of brain and cerebellum, the aggregation of nerve cells and the thickening of cortex. Wrinkles (grooves and rings) appear on the surface. (5) During viviparous and lactation, the survival rate of offspring is high. Primitive mammals lay eggs with shells. (for example, platypus) Later mammals did not have a real placenta, and young children developed in nursing bags. Real mammals (such as kangaroos) have placentas, which are produced after the fetus is fully developed. It accounts for the vast majority of mammals and is divided into fourteen categories. Insectivores (such as moles), scaly animals (such as pangolins), Chiroptera (such as bats), rabbits (such as rabbits), rodents (such as rats and porcupines), toothless animals (such as anteaters), carnivores (such as lions, dogs and pandas), walruses (such as manatees) whales (such as dolphins and beaks (such as elephants). For example, elephant features: it is the largest living land animal. Its ears are wide and flat, its nose is very long, which can help it eat, its body hair degenerates, and its soles have thick elastic tissue pads to support its weight. Its upper front teeth are particularly developed and grow outside the body. Its food is mainly plants. For example, the characteristics of anteater: its forelimbs are two to three fingers long and can be used to dig ant nests. It has no front teeth, so it can kiss. It can be attached to termites, and its tail is long and hairy. It lives in grasslands and swamps and is good at swimming. It feeds on termites and ants. For example, the characteristics of bats: specialized forelimbs, special phalanges, thin and tough wing membranes between phalanges and body sides and hind limbs, used as flying organs. The hind legs have claws, and you can stand upside down. Sternal process, clavicle developed, easy to fly. Most bats like insects and are good at catching insects in flight. A few people eat fruit. For example, the characteristics of dolphins: marine mammals are also freshwater species. Dolphins belong to toothed whales. Their bodies are linear, their necks are difficult to distinguish, and their cervical vertebrae heal. Their heads are pointed and long, and they have endoplasmic dorsal fins. Their forelimbs are specialized into wide paddles. They have no hind legs, long tails and horizontally forked tail fins. For example, the characteristics of apes: their thumbs are opposite to other fingers and suitable for climbing.

invertebrate

Arthropod classification: Crustacea: shrimp, crab, spider: spider, scorpion, insect: butterfly: centipede: I spent a lot of time and energy looking for animal species and photos, but I think it's all worth it. Because I read a lot of books and outline pages about animals and insects, I found them very interesting and learned a lot about animals. I also learned that zoologists classify animals according to their different characteristics and living habits. The largest terrestrial animal is the extinct Tyrannosaurus Rex, now the largest is the elephant, and the smallest is the amoeba that can only be seen with a microscope. I also learned that amphibians grow in water when they are young and live on land when they grow up. Some animals used to be classified as the same species. Now I know it's a second kind of animal. I also found that everything we eat is biological, and all animals eat biological things. Most animals are useful to us, but because of our capture and killing, many animals are on the verge of extinction, especially mammals. In order to balance the ecology of nature, we should not cut down trees at will, but care for nature. Don't kill animals. Because all animals are living animals like humans. 42 phyla of animal kingdom 1 Protozoa are all single-celled animals, which are the most primitive animals. Among them, Eupolyphaga and paramecium are familiar to us. They are simple internal parasites with few recorded species. Orthoptera is similar to rhombopoda, and Polypopoda is also called spongopoda. Sponge is a primitive multicellular animal. This door has been monopolized by an animal called filariasis ~ ~, and it has to obey ~~ 6. As the name implies, "archaism" means that these animals are extinct, and "cups" means that they look like cups. 7- Coelenterata includes hydra, jellyfish, anemone and coral. Are you familiar with it? Not to mention 8 Ctenomedusae, some people classify this phylum as coelenterate. As 9 phyla of Ctenomedusae, there are worms, trematodes, tapeworms and other parasites that we often hear about. 10 benthos are marine benthos with cylindrical or long sacs. 1 1 Tongue-shaped doors are bloodsucking parasites. 12 Micrognathus is a newly discovered animal in 1994. Its taxonomic status is still difficult to determine, and human beings know little about it. 13 a similar animal, slightly taller than a platypus, 14 a small jaw dragon is very small and lives in fine sand in shallow water. People don't know much about the huge family of 15 Nematoda, including many people's stomachs-roundworm 16 gastropod, an animal with cilia on its ventral surface, 17 rotifer, a very small family. Similar to Protozoa 18 Linear phylum, an animal similar to nematodes 19 Branchiostyla is a marine benthic animal that lives in cold water near the poles. There are few recorded species: 20 species of arthropods and branchiopods, which are similar to 2 1 echinoderms. 22 armored animals. 1983 just found a new door. At present, there is no accurate classification of 23 species of moss animals in anus. Arthropods, earthworms, leeches, nereis ... all have a chain-like body. Needless to say? 25 A newly discovered class of animals is in the phylum Cirrhosis, 26-Star Insect, similar to the above insects, and 27- Mollusca contains a large number of common animals. Later, I will explain in detail 30 kinds of powerful animals in the phylum Reptilia, such as 28- Soft-tongued Snail, 29- Ampoda and Cambrian Shrimp. It can withstand high temperature, absolute zero, high radiation vacuum and high pressure. 3 1 Clawed Animalia has a worm-like body, cylindrical feet and claws at the end, and 32 arthropods are almost extinct, accounting for more than two-thirds of the animals in the animal kingdom. Let's introduce this huge family amphibian.

33 brachiopods Sometimes you will see some shell-like fossils in street stalls, which are left by this animal. The external anus once belonged to the same door as the internal anus, which is called bryozoa. Now it has been isolated from 35 centipedes, which is a very small door with only 10 species of animals and all marine benthos. Archaea died out in the Big Bang 530 million years ago. It was not until recent years that we discovered 37 species of echinoderms, a familiar phylum, including starfish, sea urchins, sea cucumbers and sea lilies. Brachiopod is a non-parasitic animal without mouth and digestive tube, which lives in the deep sea, and its taxonomic status is controversial. There are only 2 species of 39 omnivorous phylum, and only about 50 species of chaetognathus, which were once considered as flat animals and mollusks near the Baltic Sea. Or marine animals 4 1 hemichordates have worm-like bodies, and some people classify them as chordates, 42 of which are all vertebrates.

Edit the section on reproduction and development.

Almost all animals have some kind of sexual reproduction. Mature individuals are diploid or polyploid. They have some special germ cells, which produce smaller swimming sperm or larger resting eggs after meiosis. Sperm and eggs will combine to become fertilized eggs and develop into new individuals. Many animals can also reproduce asexually. This may occur in parthenogenesis (mature eggs are produced without mating) or in some cases through cleavage. The fertilized egg will develop into a small ball at first, called an embryo, where it will recombine and differentiate. In the sponge, the embryo will swim to a new position and develop into a new sponge. In most other groups, embryos undergo more complex recombination. Embryos are initially nested to form gastrula with digestive cavity and two independent germ layers-ectoderm and endoderm. In most cases, there is a mesoderm in the middle. These germ layers then differentiate into various tissues and organs. Most animals use the energy of sunlight indirectly to grow. Plants use sunlight to convert monosaccharides in a process called photosynthesis. At first, it was carbon dioxide and water. After photosynthesis, the energy of sunlight was converted into chemical energy bound in glucose, releasing oxygen. These sugars are then used as building materials for plant growth. When animals eat these plants (or eat other animals that eat plants), the sugar produced by plants will be used by animals. These sugars are either directly used to help animals grow, or they are decomposed to release stored solar energy for animal activities. This process is called glycolysis. Animals living in deep-sea hot springs and cold springs near the seabed do not rely on solar energy. But archaea and chemically synthesized bacteria form the basis of the food chain.

Method and evaluation of edit that naming template of this classification ord.

1. Turtle claw turtle is a kind of turtle that lives in the inland grassland area. The carapace is 12 ~ 16 cm long and 10 ~ 14 cm wide. Yellow head and limbs; Small head with symmetrical scales at the top; The edge of the beak is serrated. The center of the shield is brown-black, the edge is yellow, and there are concentric rings. All limbs have four claws, and there is no web between fingers and toes. There are hard scales on the forearm and gaskin, and a cluster of conical scales on the back of the thigh. It belongs to the national first-class protected animals. 2. The giant salamander is the largest species in the existing order, and the longest can exceed 1 m.. The head is flat and blunt, the mouth is big, the eyes are underdeveloped, and there are no eyelids. The front of the body is flat, and the tail gradually turns to the side. There are obvious skin folds on both sides of the body, short and flat limbs, and slightly webbed fingers and toes. The tail is round and has fins up and down. The body surface is smooth and covered with mucus. The back of the body is mixed with brown and red, and the ventral color is lighter. It belongs to the national second-class protected animals. 3.hummingmonkey is a small and slow-moving monkey with a body length of 32-35cm. Two small ears are hidden in a hairy round head; Eyes are round and big. The limbs are short and thick, the length is equal, the second toe still has claws, and the tail is short and hidden in the bushes. The back of the body is brown-gray or orange-yellow, with a brown ridge extending from the top to the base of the tail in the middle, and the abdomen is brown, with dark brown ring spots on the eyes and ears. There are also giant pandas, golden monkeys, baiji and Chinese sturgeon in China.

Mexican capybara Vaquita Habitat: California Bay Remains: 200-300 is a rare whale species in the world. The number of Mexican capybara itself and being trapped by fishing nets are the main reasons for its extinction. The main habitats of cross river gorillas: Nigeria and Cameroon. Remaining: Less than 300 species considered extinct in 1980s are still alive. Hunting them for food and being driven out of their habitat for development may not last long. Sumatra Tiger Habitat: Sumatra, Indonesia: Less than 600 of these tigers have lived in Sumatra for millions of years, so it is difficult to escape human expansion. Most survivors have been protected, but there are still about 100 people living outside the reserve. Long animals are being protected. It is still in serious danger, but its number rose for the first time in decades in 2003. Black-footed ferret habitat: remaining in the Great Plains of North America: 65,438+0,000 ferrets, the only species in the American continent, are the most endangered mammals. 1986, only 18 is left, but the number of species is increasing. Borneo pygmy elephant habitat: North Borneo remains: 1500 is about 20 inches (50 cm) shorter than Asian elephants, and Borneo pygmy elephants are more docile. The reduction of palm gardens makes them live in crowded spaces. Giant Panda Habitat: China (Qinling, Sichuan) Remaining: Less than 2,000 lost and broken habitats are the main reasons for the endangered giant pandas. With the help of captive breeding and species protection, there is hope to save the giant panda from extinction. Polar bear habitat: Arctic Circle remains in the Arctic: less than 25,000 polar bears are threatened by long-term human development and poaching, but climate change and sea ice reduction are the main reasons for their decline at present. Giant Catfish Habitat in Mekong River: Other parts of Southeast Asia in Mekong region: Due to its huge size (the largest discovery in history is 646 pounds, or 293 kilograms), hundreds of them are particularly precious. Now they are protected species in Thailand, Laos and Cambodia, but fishing continues. Purple marsh crab Purple marsh crab only lives in Upper Guinea, a wetland in West Africa. Purple crab lives in mud holes in swamps and is still wet even in dry season. The first batch of living samples were collected in 2005, and these semi-terrestrial air breathes. Recently, a new species, elusive crab, was discovered, which led to the reclassification of its protection status from "serious" to "endangered" and became an endangered species on the red list in 2008. Parachute Spider Rameshwaram Parachute Spider is limited to Rameshwaram on a few planting islands and India on the nearby mainland. Rameshwaram parachute spider is an endangered species in the red list of critically endangered tarantula in 2008. The number of spiders may be less than 500, and the woodland as its habitat has been destroyed and planted into a tourist attraction. The extinction of Holderidge toad Holderidge toad in Costa Rica refers to the endangered species listed in the IUCN red list in 2008, which was announced by 10 on June 6th. Despite many investigations, no amphibians have been recorded in their rainforest habitats since 1986. Researchers believe that toads may be victims of destructive fungal diseases, which are related to the general decline and are amphibious species in the world. The population of Cuban crocodiles has decreased by more than 80% in the past three generations, which made Cuban crocodiles from "endangered" to "extremely endangered" in the red list in 2008. Hunting, hybridization with other crocodile species and the decline of habitat quality have led to the decrease of small freshwater crocodiles, which only exist in Cuba. Edit Mathematicians in Animals in this paragraph.

Make a square with three sides in the golden rectangle (the rectangle with the aspect ratio of 0.6 18), and the rest is the golden rectangle, which can be made into squares in turn. Connect the centers of these squares in turn and you can get a "golden spiral". Oceanographers have found that the "golden spiral" has been found in nautilus, horniness of some animals, or mollusks with crustaceans. Scientists also found that corals can remember "calendars" beautifully on themselves; They carve 365 rings on the body wall every year, that is, they "draw" a ring every day. Stranger still, paleontologists also found that coral "painted" 400 annual rings 350 million years ago. Why is this? Astronomers tell us that at that time, the earth's rotation was only 2 1.9 hours a day, but it was 400 days instead of 365 days a year. This shows that corals can "calculate" and "record" the time of one year according to the change of astronomical phenomena, and the result is very accurate. Ants are also excellent "mathematicians". British scientist Henston once did an interesting experiment: he cut a dead grasshopper into three pieces, the second piece was twice as big as the first piece, and the third piece was twice as big as the second piece. Forty minutes after the ants found these three pieces of food, only 28 ants gathered on the smallest grasshopper, but there were 44 ants in the second piece and 89 ants in the third piece. The latter group is almost the same as the former group. Bees can be considered as "gifted mathematicians and designers". The hive built by worker bees is quite wonderful. The obtuse angle of the diamond at the bottom of the honeycomb is 109 28', and the acute angle is equal to 20 32'. Mathematicians have theoretically calculated that if the least material is consumed, the largest diamond will be made at this angle. Red-crowned cranes always migrate in groups and are arranged in a zigzag pattern. The angle of the herringbone is always 1 10. Half of the included angle of herringbone is exactly 54 44' 8 ",but the angle of diamond crystal is also exactly this degree.

Edit the role of animal tails in this paragraph.

We all know that kangaroo's tail is very developed, and it grows thick and long, so the bear mouse's tail is longer than its body. What are their tails for? On the grassland of Australia, kangaroo is an animal with poor self-defense ability. It must always be alert to the invading enemy and run as soon as there is any enemy situation. In order to observe the enemy, it must stand. At this time, the tail plays a role in supporting the body. The long tail of the bear mouse also has its wonderful use. When bears and mice jump high, they have to straighten their backs, hind legs and tails to jump. When crossing a tightrope, it also keeps its balance with its tail, just like an acrobat walking a tightrope with a long pole in his hand. The squirrel's tail is more important. Squirrels often jump up and down from trees. This big tail can increase the jumping distance of squirrels. When a squirrel jumps from tree to tree, it can jump more than ten meters with its tail straight. With this skill, when a squirrel meets a fierce animal, it can escape quickly. In addition, when the squirrel jumps down from the tree, its big tail is like a parachute, which enables the squirrel to fall to the ground safely. When landing, its big tail is fluffy, thick and soft, which acts as a sponge pad. When the squirrel rests at night, he puts it on his body and covers his head and body like a quilt to keep warm. A bird's tail is used to steer, just like the rudder on a ship. You can understand this by carefully observing the tail of an eagle hovering in the air. The swallow's tail is scissors-shaped, which is used to change direction suddenly.

Edit this paragraph

animal

The defensive behavior of animals is the behavior of animals to respond to foreign aggression, defend their own survival, or warn other individuals in their own group.

Food storage behavior

Fundamentally speaking, animals ingest food in order to ingest nutrients that constitute the body-all kinds of organic and inorganic substances, as well as energy necessary for various physiological activities. This is the feeding behavior of animals. Therefore, when there is enough food, some animals will store some food and eat it when they are hungry. This behavior is called food storage behavior.

aggressive behaviour

The aggressive behavior of animals refers to the attack or struggle between individuals of the same species. In the animal kingdom, individuals of the same species often attack or fight with each other for food, spouses, nests and fields.

Reproductive behavior

The reproductive behavior of animals is rich and colorful, including a wide range of contents, mainly including male and female animal identification, occupying reproductive space, courtship, mating, hatching eggs, brooding and so on.

Animal thinking