Discover Nature this week with Missouri's Toads and frogs. You see and hear them near water and wooded areas, but how can you tell the difference between these two amphibians? Most Midwestern states have between 15 and 20 kinds of toads and frogs. And although both bear a strong resemblance, there are some interesting distinctions between them. Toads and frogs are predators that help keep populations of insects and other small animals in balance. They (and their eggs, tadpoles, and young) become