1, blue whale
Blue whale is a kind of marine mammal with a body length of 22-33 meters, a maximum body length of 33 meters and a weight of 18 1 ton. It is a food source of small crustaceans, small fish and squid, and is currently distributed in the four oceans of the world.
2. Fin whales
The baleen whale is the second largest genus of baleen whales in the world, with a spindle shape and an average body length of about 25 meters. It is an aquatic mammal of the genus baleen, which feeds on small crustaceans such as krill and mysid shrimp, and mainly lives in Antarctic waters.
3. Bowhead whale
Bowhead whale is a cetacean marine mammal with a body length of 2 1 meter. It usually uses a thick voice to communicate when migrating, eating or socializing. Among them, the long and repeated whale songs are mating signals, and because some of them live between 150-200 years old, they are also long-lived whales.
4. Right whale
Right whale is a kind of whale with spindle shape, the longest body length can reach18m, and the weight can reach100t. Most of its spindle-shaped body is black, and its smooth surface is hairless. The Pacific Ocean and Atlantic Ocean are its main active areas, but it is on the verge of extinction due to over-hunting, and it is currently protected by international agreements.
5. Sperm whales
Sperm whale is a kind of toothed whale, which is famous for its dry internal secretion "Long Xianxiang" as a valuable spice and traditional Chinese medicine. It usually takes squid as its main food, and becomes the largest toothed whale with the longest diving time because of its maximum body length of18m.