Crocodiles swallow stones to help them dive deeper.
55
Owls are one of the only birds who can see the color blue!
58
A species of earthworm in Australia grows up to 10 feet in length.
10
Polar Bears can eat more than 50 lbs. of meat in one setting.
25
The heart of a mouse beats 650 times per minute!
53
Cats and dogs can hear ultrasound.
350
Tigers can see 6 times better at night than humans.
305
On average, it takes 660 days from conception for an elephant to give birth.
19