Fire-bellied newt (Cynops pyrrhogaster pyrrhogaster)Amphibians, Amphibians & FishLess than six inches long, this aquatic amphibian feeds on insects and other invertebrates in slow-moving or still waters. Named for the bright red-orange coloration on its belly, the fire-bellied newt is toxic to the touch, a defense mechanism against predators. In zoos, however, they seem to lose their toxicity.