Cats recognise the voice of their owner, but never evolved to care.
22
When cats are happy, they may squeeze their eyes shut.
10
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 first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Parrot parents "name" their children with a signature call.
112
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Tigers can see 6 times better at night than humans.
305
In 1949, an official boxing match between a bear and a man was held. The bear won.
41