Darwin's frog is a unique amphibian found in the forests of Chile and Argentina. It is known for its remarkable reproductive behavior, where the male carries the developing tadpoles in his vocal sac until they are ready to emerge as fully formed frogs. This adaptation helps protect the young from predators and environmental hazards. The species is named after the famous naturalist Charles Darwin, who studied various forms of life during his travels. Darwin's frog has a distinctive appearance, with a flattened body and a coloration that helps it blend into its surroundings, making it less visible to potential threats.