One Happy Milk Frog

Amazon Milk Frogs, also known as Mission Golden-eyed Tree Frogs or Blue Milk Frogs, were first found in Rio de Janeiro's Maracanã River. The name "Milk Frog" refers to the poisonous, white, milky secretion that this frog secretes when threatened. But what about that blue mouth? This species is most active at night and is known for its loud vocalizations.