Living habits of blue whales

Predation:

Whales in the Southern Ocean mainly feed on krill, but also eat some crustacean zooplankton, such as copepods. Filter-feeding baleen whales migrate from subtropical and temperate zones to the South Pole, where they feast and mate. During this period, some people can accumulate 50% body fat. Baleen whales rarely eat in the subtropics, and the fat accumulated in Antarctica is used to provide energy for the rest of the year. Toothed whales are mainly squid and fish eaters. Whales have a big appetite. A blue whale can eat 8 ~ 10 tons of krill a day. The mouth of a blue whale has a volume of 5 cubic meters. When it opened its mouth, a large number of krill poured in with the sea water. When it closes its mouth, the seawater is squeezed out from the gap between its lips, and the filtered krill is swallowed in one gulp.

Breathe:

Fountain breathing is a unique life habit of whales. When whales live underwater, they close their nostrils and breathe out of the water. When they breathe, their nostrils open, and with the pressure of the lungs and the contraction of muscles, they spray a sparkling water column, accompanied by a whistle-like cry. Therefore, the height and shape of the spray column is a sign to identify different whale species. Based on this, experienced whalers can quickly judge the species, size and distance of whales. For example, the blue whale's water jet column is vertical and powerful, thick on the top and thin on the bottom, and loose on the top, like a fireworks show, with a range as high as 10 meter. Other baleen whales generally have a water jet column height of 8 ~ 10 meter. Sperm whale's water jet column is deflected to the left and front, and its jet force is weak, short and loose, and its height is only 3 ~ 4 meters.

Copy:

Many whales breed outside Antarctica, usually once a year, giving birth to a calf at a time. Pregnancy is generally 9 ~ 12 months, blue whale 12 months and sperm whale 16 months. Young whales grow very fast. Intrafetal development

Sleep:

The habit of most whales in groups is not obvious, but sperm whales have the habit of organizing small families. Their members are often female whales, young whales and male whales, but there are often adult male whales around, waiting for opportunities to compete for their wives. Sperm whales are usually polygamous.

Eat:

Whales in the Southern Ocean mainly feed on krill, but also eat some crustacean zooplankton, such as copepods. Filter-feeding baleen whales migrate from subtropical and temperate zones to the South Pole, where they feast and mate. During this period, some people can accumulate 50% body fat. Baleen whales rarely eat in the subtropics, and the fat accumulated in Antarctica is used to provide energy for the rest of the year. Toothed whales are mainly squid and fish eaters.

Whales have a big appetite. A blue whale can eat 8 ~ 10 tons of krill a day. The mouth of a blue whale has a volume of 5 cubic meters. When it opened its mouth, a large number of krill poured in with the sea water. When it closes its mouth, the seawater is squeezed out from the gap between its lips, and the filtered krill is swallowed in one gulp.

Breathe:

Fountain breathing is a unique life habit of whales. When whales live underwater, they close their nostrils and breathe out of the water. When they breathe, their nostrils open, and with the pressure of the lungs and the contraction of muscles, they spray a sparkling water column, accompanied by a whistle-like cry.

Therefore, the height and shape of the spray column is a sign to identify different whale species. Based on this, experienced whalers can quickly judge the species, size and distance of whales. For example, the blue whale's water jet column is vertical and powerful, thick on the top and thin on the bottom, and loose on the top, like a fireworks show, with a range as high as 10 meter. Other baleen whales generally have a water jet column height of 8 ~ 10 meter. Sperm whale's water jet column is deflected to the left and front, and its jet force is weak, short and loose, and its height is only 3 ~ 4 meters.

Whale breeding: Many whales breed outside the Antarctic, usually once a year, and each fetus gives birth to a baby. Pregnancy is generally 9 ~ 12 months, blue whale 12 months and sperm whale 16 months. Young whales grow very fast.

Intrafetal development

Sleep of whales: The habit of most whales living in groups is not obvious, but sperm whales have the habit of organizing small families. Their members are often female whales, young whales and male whales, but there are often adult male whales around them, waiting for opportunities and fighting for wives. Sperm whales are usually polygamous.