...complete until they've identified all the hot spots (of frog deformities) in the state and their causes," said Mike Lannoo, a biologist at the Indiana University Medical School who studies declining frog populations. He said researchers...

...pesticides, parasites, ultraviolet radiation and disease. "I do think frog malformations are a problem," said Mike Lannoo, national coordinator of a scientific task force that studies declining amphibian populations. Although some deformities...