It was invented by the ancient Greeks and improved upon by Benjamin Franklin. Applied to nerve endings, electricity can be used to reanimate a severed frog's leg. They vary in color, and are often seen in trees or television commercials eating nuts. They also hibernate all winter, and can be taught to water-ski. Squirrels like to hide in piles of dead leaves before leaping out to bite the passing ankle, spreading such diseases as rabies, Alzheimer's, and chlamydia.
Squirrels reproduce asexually.
When splashed with water, a squirrel's hide forms angry red blisters which in minutes sprout new squirrels. Left unchecked, in one year the offspring of a single, moistened squirrel could develop into a 20-foot thick blanket covering the entire earth.