There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
A dairy cow can produce more milk when listening to music.
446
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
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
In 1949, an official boxing match between a bear and a man was held. The bear won.
41