With over 7,000 species, this is the largest and most diverse group.
: The Red-spotted Newt has a complex three-stage life: aquatic larva, bright orange land "eft," and olive-green aquatic adult. Caecilians ( Gymnophiona ) amphibian genus
Known for their long tails and, in some cases, the ability to stay "young" forever. : Features the Axolotl ( With over 7,000 species, this is the largest
: These skip the tadpole stage entirely; miniatures of adults hatch directly from eggs laid on land. With over 7
These are the least known: limbless, often blind, and resemble large worms or snakes.