The largest breed of rabbit is the Flemish Giant.
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Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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The reindeer is the only mammal that can see UV light.
17
A group of kittens is called a "kindle".
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