Claim: Unkenreflex is displayed by all amphibians including  Rana macrocnemis to the same degree and is also not entirely limited to poisonous amphibians.
Evidence: Unkenreflex – interchangeably referred to as unken reflex (Unke is the German word for the genus of fire-bellied toads) – is a defensive posture adopted by several branches of the amphibian class – including salamanders, toads, and certain species of frogs.