Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Condoms were originally made of animal intestines or linen.
347
Cows can sleep standing up, but they can only dream lying down.
745
A 42-foot sperm whale has about 7 tons of oil in it.
209
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18