Rats can't vomit, that's why rat poison works.
68
A duck's quack doesn't echo, and no one knows why.
173
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Penguins can convert salt water into fresh water.
97
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Dolphins sleep with one eye open!
52