When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
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
Sharks, like other fish, have their reproductive organs in their chests.
248
Bats sleep 18-20 hours per day.
5
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205