Cats and dogs can hear ultrasound.
350
Jellyfish as a species are actually older than dinosaurs and sharks.
383
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The octopus does not have a blind spot.
273
The elephant brain weighs about 6,000g.
274
Denmark has twice as many pigs as there are people.
66
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7