Dogs have been man's pet for over 14,000 years.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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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).
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