A duck's quack doesn't echo, and no one knows why.
173
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
After eating, a housefly regurgitates its food and then eats it again!
16
A giraffe can clean its ears with its 21-inch tongue!
31
Squirrels forget where they hide about half of their nuts.
698
Flamingos can only eat with their heads upside down.
38
Tigers can see 6 times better at night than humans.
305
The abdomen of the ant contains two stomachs. One stomach holds the food for itself and second stomach is for food to be shared with other ants.
113