During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Only 3% of bird species have penises.
0
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Sharks, like other fish, have their reproductive organs in their chests.
248
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40