A team of scientists from Brazil and the United States has found the specialized oral glands in the jaws of the ringed caecilian (Siphonops annulatus), a snake-shaped amphibian related to frogs and salamanders. The ringed caecilian (Siphonops annulatus). Image credit: Carlos Jared. Neither snakes nor worms, caecilians (order Gymnophiona) are limbless amphibians found in tropical climates of Africa, Asian and the Americas. These creatures are aquatic...