Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
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
Female kangaroos have three vaginas.
2
Denmark has twice as many pigs as there are people.
66
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14