Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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