The reindeer is the only mammal that can see UV light.
17
Female kangaroos have three vaginas.
2
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
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20