Gorillas can catch human colds and other illnesses.
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There's a rare breed of pig that looks like a sheep.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12