The brain and other organs

Physeter macrocephalus has fasinating organs. For starters sperm whales have the longest intestinal system in the world, which can be more than 300m in length in some larger specimens.

The brain of P. macrocephalus is also the largest of any known species, alive or extinct. It weighs in at an average value of 7.8kg, which is more than 5 times heavier than a human brain!

A preserved brain of a sperm whale, on display in Miraikan (Japan).

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One Response to The brain and other organs

  1. Profile photo of Sam Sam says:

    Jesus! That is a very large brain! If I ever become a zombie, I know where I’m heading! Also cannot believe the length of that intestine – its basically abseiling equipment. Cool topic, looking forward to reading more on Sperm whales!

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