The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Squirrels forget where they hide about half of their nuts.
698
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
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