When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
A domestic cat can sprint at about 31 miles per hour.
274
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
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