Condoms were originally made of animal intestines or linen.
347
A domestic cat can sprint at about 31 miles per hour.
274
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
The cat brain weighs about 30g.
167
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4