Jellyfish as a species are actually older than dinosaurs and sharks.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The colossal squid has the largest eyes in the world.
4
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A domestic cat can sprint at about 31 miles per hour.
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