When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
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
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Cats and dogs can hear ultrasound.
350
One in three dog owners say they have talked to their pets on the phone.
427