Sperm Whale

Sperm Whales are the largest toothed animal on the planet reaching lengths of 67 ft. Interestingly, their heads are rougly one third the size of their body, which gives them another distinction of having the largest brain of any animal on earth. They get their name from a milky-white substance found in their heads. Sperm Whales can dive to depths of 9,800 ft - nearly two miles! - and feed primarilly on giant squid and fish.

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