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
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
There are approximately three chickens for every human on Earth.
13