Condoms were originally made of animal intestines or linen.
347
Cows can sleep standing up, but they can only dream lying down.
745
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10