Gallery | Ancient Leviathan | leviathan_orca_spermwhale

Leviathan’s skull was clearly more robust and toothy than that of today’s sperm whale, which feeds through suction. Like a modern killer whale, it would have grabbed its prey with a powerful bite, but one that was at least three times bigger. Its temporal fossa – the shallow depression on the side of the skull – was enormous and could old huge jaw-closing muscles. (Photo by O.Lambert)

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