Jellyfish as a species are actually older than dinosaurs and sharks.
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Whales and dolphins can't taste anything other than salt.
11
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The largest earthworm on record was found in South Africa and measured 22 feet.
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