1st evidence of oral venom glands in amphibians found: Biologists

Biologists claim to have found the first known evidence of oral venom glands in amphibians. They discovered the oral glands in a family of caecilians, serpent-like creatures related to frogs and salamanders. Researchers surmised that caecilians activate their oral glands when they bite down on prey, including worms, termites, frogs and lizards.