Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The Basenji dog is the only dog that is not able to bark.
4
Ants tend to survive in a microwave because they find the coolest spot and wait!
17
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12