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[[Image:Spermwhale.jpg|thumb|300px|right]]
The '''Sperm whale''' or cachalot, ''Physeter macrocephalus'', is the largest species of toothed [[whale]].
The '''Sperm whale''' or cachalot, ''Physeter macrocephalus'', is the largest species of toothed [[whale]].
== Habits ==
== Habits ==
The sperm whale dives up to two miles deep in the ocean in search of its principal prey, the [[giant squid]], sometimes staying underwater for an hour and a half. The sperm whale has poor eyesight and blind individuals are far from uncommon; although good eyesight is irrelevent to catching its prey in the lightless ocean depths, it is not known how in fact the whales do locate their prey.
The sperm whale dives up to two miles deep in the ocean in search of its principal prey, the [[giant squid]], sometimes staying underwater for an hour and a half. The sperm whale has poor eyesight and blind individuals are far from uncommon; although good eyesight is irrelevant to catching its prey in the lightless ocean depths, it is not known how in fact the whales do locate their prey.
== Human exploitation ==
== Human exploitation ==