Mondo Knows Facts
A blue whale heart weighs about 180 kilograms
Its aorta is wide enough for a small child to crawl through The heart beats slowly, roughly five to ten times a minute at the surface and far slower on a dive. Blue whales are the largest animals known to have lived, reaching around 30 metres. Their calls travel hundreds of kilometres underwater. It sits in Mondo's animals collection, one of 200 facts that each trace back to the reference below.
Where this comes from
Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
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Tags: whales, anatomy, size
A blue whale heart weighs about 180 kilograms: the short answers
- Where does this come from, and can I check it?
- Its aorta is wide enough for a small child to crawl through. 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.