The Green and Black Poison Dart Frog has a slim body with a rounded snout. It has slender legs with toes and fingers having small adhesive discs for climbing. They are one to two and three eighths inches long depending on the area where they are living. They have no teeth. Their color also varies with location. They may be green and black, bronze with splotches of metallic green or light blue with black or brown bands. Their color alerts potential predators that their skin holds a poisonous liquid. The liquid is most unpleasant to the taste as well as being poisonous. Captive frogs do not produce dangerous skin toxins. This is because their diet in captivity does not include the insects they eat in the wild. Only two species of the poison dart frogs have been used to poison darts and arrows, but the whole genus received the name.