Cats and dogs can hear ultrasound.
350
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
There's a rare breed of pig that looks like a sheep.
14
Parrot parents "name" their children with a signature call.
112
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
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
The largest earthworm on record was found in South Africa and measured 22 feet.
151