Dolphins have names for one another.
18
Bats sleep 18-20 hours per day.
5
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A cow produces around 200,000 glasses of milk in her lifetime.
373
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 Australia, there are spiders big enough to eat snakes.
20