The most important and largest mammal dwelling within the Arctic seas. It might match 60 elephants or 350 cattle comfortably. When he opens his mouth, he can simply swallow his crew with a ship. Though it’s a mammal and breathes by way of lungs, its physique resembles a fish. The entrance members are spade formed. The posterior members aren’t developed. It has a forty five cm thick layer of fats underneath its arduous, hairless and slippery pores and skin. Their bones are spongy and full of fats. In contrast to fish, the caudal fin is horizontal and boneless. To forestall them from being affected by salt water, the tear glands secrete a protecting liquid substance.
Whereas touring in herds, they impart by making distinctive sounds. A killer whale makes two sounds directly. Blue whales, then again, make sounds that unfold all through the ocean. Though they don’t have exterior ears, their listening to could be very sturdy. They’re considered disadvantaged of their sense of odor. Whereas nursing their younger, they lie on their aspect and spray the milk into the pet’s mouth. They arrive to the floor at intervals of 15-20 minutes and breathe by way of their capped nostrils on their heads. They will keep underwater for 1.5 hours. They don’t squirt water out of their nostrils. The heated moist air they breathe out condenses within the environment, and it resembles a gushing water hose.