Early American humans hunted car-size armadillos and used their shells for houses.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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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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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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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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