Cows can sleep standing up, but they can only dream lying down.
745
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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