These unusual images of frog and toad picked from around world seems like they're from a sci-fi movie, but are real examples of these amphibians diversity. They are found almost everywhere around the world. The world frog population is in rapid decline, and over 1/3 of all frog species are threatened with extinction. Many scientists believe that amphibians are a good biological indicator of broader ecosystem health, which means we might have something to worry about.
