Where does this come from, and can I check it?

They hold their breath for around 90 minutes and click to find prey. The figure is taken from NOAA Fisheries, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a animals fact?

Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Sperm whales hunt more than two kilometres down

They hold their breath for around 90 minutes and click to find prey Their bodies carry extra oxygen in muscle myoglobin and can slow blood flow to non-critical organs. The clicks they use to echolocate are the loudest sounds made by any animal. Sperm whales also sleep in vertical drifts, tail down, for short spells. It sits in Mondo's animals collection, one of 200 facts that each trace back to the reference below.

Where this comes from

NOAA Fisheries

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

Go further

Nature & Animals trivia

More facts like this

A hunting bat can call 200 times a secondThe rate rises as it closes on an insect Dolphins focus echolocation clicks using a fatty forehead organThe dolphin melon acts as an acoustic lens for sonar beams.Humpback whales rewrite their song every yearAll males in a population sing the same version, and it evolves over months A blue whale heart weighs about 180 kilogramsIts aorta is wide enough for a small child to crawl through A diving seal slows its heart to a few beats a minuteThe dive reflex shuts blood away from limbs and directs it to the brain and heart A dead whale feeds a community for decadesA whale fall supplies scavengers and bacteria for up to 50 years

Tags: whales, diving, echolocation

Sperm whales hunt more than two kilometres down: the short answers

Where does this come from, and can I check it?: They hold their breath for around 90 minutes and click to find prey. The figure is taken from NOAA Fisheries, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?: Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.