Most vertebrates have two sets of chromosomes, one from their mother and one from their father - including humans who are thus diploid. In contrast, polyploidy, meaning to possess three or more sets ...

A green toad floats near the water surface among reeds, remaining almost motionless. The calm scene captures a subtle moment ...

Most everyone recognizes frogs. Frogs, like salamanders and newts, are amphibians. Unlike salamanders, they have made a major evolutionary detour from the body plan of their ancient ancestors. The ...

JOHNSON CITY, Tenn. (WJHL) — 15 out of the 21 documented frog and toad species in the Volunteer State can be found in and around East Tennessee. While toad and frog classifications are often used ...