Early American humans hunted car-size armadillos and used their shells for houses.
12
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Only 3% of bird species have penises.
0
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
A group of unicorns is called a blessing.
304