Frogs usually have smooth, moist skin and spend most of their lives in or near water.
Toads usually have dry, warty-looking skin and spend more time living on land. Scientifically, things are a more complicated. Here is the family tree that shows how the frog and toad families are grouped. Frogs are beneficial to humans because they eat so many insect pests. Some large species of frogs, like the African bullfrog , will try to eat just about anything, including other frogs as well as small fish, reptiles, and mammals.