The Basenji dog is the only dog that is not able to bark.
4
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Cats and dogs can hear ultrasound.
350
Cows can sleep standing up, but they can only dream lying down.
745
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
A puppy is born blind, deaf, and toothless.
16