Early American humans hunted car-size armadillos and used their shells for houses.
12
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.
22
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Rattlesnake mating sessions have been known to last more than 22 hours.
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