It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Dogs have been man's pet for over 14,000 years.
224