Bats sleep 18-20 hours per day.
5
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The seahorse is the only fish to have a neck.
12
Dogs sometimes fake being sick to get attention.
26
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
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
In 1949, an official boxing match between a bear and a man was held. The bear won.
41