Blubber

... (through mutations) simply provides possibilities. For example, it the climate gets colder, evolution does not respond by providing fur, feathers, blubber, etc. to insulate against the cold. If there are individuals that are able to withstand the colder temperatures, they will survive better than ...

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... definitely see the importance of fat as a thermal insulator: whales, seals and such can live in freezing cold waters because of the thick layer of blubber (fat) under their skin. Although blubber has more vascularization than normal adipose tissue, their diameter is controlled in a similar manner ...

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... It is also very sensitive to touch, because they live in close-knit groups and bond through touch. Ithas a thick layer of stored fat, or blubber, underneath it that protects them from the cold and their organs from wounds during attack by predators.

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I thought is was a lot of white fur and blubber to keep the body warm during the cold winter months.

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Sure the whale has a thick layer of blubber protecting it's enourmous body. But have we taken into account the hardened barnacles? This almost acts as a plate of armor for the whale. A quick quote from a website (http://whale.wheelock.edu/archives/ask03/0208.html): ...

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