Entries in #spermwhale (1)

Monday
Feb122018

Spermaceti

Have you ever wondered why the sperm whale, Physeter macrocephalus, has such a big head? Nearly one third of the cetacean’s entire body mass is made up by its gigantic melon, and at first glance it looks very impractical. Plowing its way through the water like a school bus, it's hard to imagine how much energy must be burnt in the process. When you compare it to the very streamlined bottlenose dolphin, the sperm whale’s head appears to be a clear impediment. So why is it so huge?

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