Black Whales are born white.
41
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Chained dogs are 3 times more likely to bite than unchained dogs.
34
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
A duck's quack doesn't echo, and no one knows why.
173
A crocodile cannot stick out its tongue.
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