Condoms were originally made of animal intestines or linen.
347
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Cows can sleep standing up, but they can only dream lying down.
745
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