A chameleon's tongue is twice the length of its body.
29
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
The most powerful electric eel is found in the rivers of Brazil, Columbia, Venezuela, and Peru, and produces a shock of 400-650 volts.
45
Flies are deaf.
379
World's heaviest primates: morbidly obese humans. After that: gorillas at 485 lbs.
106
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
7,000 new insect species are discovered every year.
30
Iguanas have two penises!
55