When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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
The cat brain weighs about 30g.
167