Condoms were originally made of animal intestines or linen.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
The elephant brain weighs about 6,000g.
274
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5