Chameleon spit is 400 times more sticky than human saliva

Chameleons are vicious little predators. They hunt bugs, birds, mice, and even other chameleons using only one weapon: their tongues. New research shows precisely how good these weapons are: the tip of a chameleon’s tongue produces a mucus that’s 400 times more sticky than human saliva, allowing the hungry reptile to catch prey up to a third of its body weight.