What is the biggest animal in the world?
The blue whale is the biggest animal in the world: about 165 tons150 tonnes1. The biggest animal that has ever lived, bigger than any dinosaur.
Next on Peabody, among the animals with a checked number we can show: the whale shark, at about 40 tons36 tonnes2.
Drawn to scale, next to you
More answers
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- Every answer
Where the numbers come from
- NOAA Fisheries, checked 30 October 2026.
- NOAA National Ocean Service, checked 30 October 2026.