Sperm Whale
Physeter macrocephalus
The biggest toothed whale hunts by sound in darkness.
Sperm whales dive into deep, dark water and search with powerful clicks. Their enormous square heads hold the sound-focusing organs that make this hunt possible.
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From field guide to game table
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Quick dive
Creature passport
- Home
- They live in deep oceans worldwide, from the equator toward polar ice.
- Favorite foods
- They mainly hunt squid and deep-water fishes, including some large squid.
- Size check
- Females about 40 ft; males to 52 ft (12-16 m)—school-bus length
Tell-your-friends facts
Four wonderfully wild things
- 1
Sperm whales are the largest members of the toothed-whale group.
- 2
Their single blowhole sits left of center, making a low angled spout.
- 3
They often lift their tail flukes before beginning a deep dive.
- 4
Females and young live in social groups while mature males often travel separately.
Ocean superpower
Built to be amazing
Extremely powerful echolocation clicks reveal prey far beyond the reach of sunlight.
Junior scientist tip
What should I look for?
Notice the huge blocky head, wrinkled gray skin, and angled blow.
Grown-up research links
We used trusted science organizations to check this profile.