Audio: Listen to the din of dozens of calling spring peepers in a Southeast Oklahoma wetland area. (Approx. 3 minutes) Chorus frog or tree frog: That is the question. If you're hearing a peeping, high ...

All over the world, amphibians are in decline. The reasons are legion: Wetland homes are drained; pesticides and herbicides interfere with their life cycles; invasive species introduced as pets bring ...