2007-01-24 19:28:54 · 5 answers · asked by sam 1 in Science & Mathematics ➔ Zoology
Seals have lots of fat. they r infact covered with fat n so can withstand cooler temp.s
2007-01-24 19:45:01 · answer #1 · answered by bhatrax 3 · 0⤊ 0⤋
What gives you the idea that seals tolerate -40°? Temperatures that low do not occur in summer. In winter in Antarctica or the Arctic, the seals are not inland or even on the coast where it is very cold but on the edge of the ice where the ocean keeps temperatures at a tolerable level. The edge of the ice is a hundred kilometres or more from the coast.
To combat the cold, seals have a thick layer of fat called blubber as well as a special blood circulation system. They don't, however, have to put up with -40°.
By the way, -40° is rather special, it is the same temperature in both Celsius and Fahrenheit
2007-01-25 04:05:51 · answer #2 · answered by tentofield 7 · 0⤊ 0⤋
Well, usually mammals that live in extremely cold environments like whales and dolphins have two factors that help them tolerate the cold: first of all, a thick layer of blubber under their skin which acts as an insulator and second: the lay-out of the arteries and veins is in such a way that the outgoing warm blood heats up the cold blood returning to the heart.
2007-01-25 03:47:00 · answer #3 · answered by Kill Bill 1 · 0⤊ 0⤋
well let me tell u this alll warm blooded animals that live in the ocean have blubber. and thats what keeps them warm in freezing cold water. (blubber is a type of fat on there body) well i hope this helps
2007-01-25 09:15:21 · answer #4 · answered by spongebob fan 4 · 0⤊ 0⤋
Bhatrax is right
Also milk of all aquatic animals have high fat content .
They have very efficient theromorerulation so that, they can survive...
2007-01-25 10:26:11 · answer #5 · answered by saru 2 · 0⤊ 0⤋