Frog

The frog is a marine amphibian that hops. Some science classes dissect frogs, which is cruel to the animals involved. Voltaire did experiments on frogs circa 1766, in which he discovered that frogs hear with their legs. Also, a leg will kick if it is hit with an electrical shock, which is the scientific basis behind the reflex tests now common in doctors' offices. Thus frogs contributed to our knowledge of God's natural world.

"Frogs" is also a derogatory name for the French, because they eat frogs' legs.