The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
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