One of the many varieties of frogs that can be sighted in the forests of the Amazon rainforest. Scientists worldwide are discovering new therapeutic uses venom of toads and frogs. Some applications that were already known by various tribes of the Amazon, and are now being studied by such prestigious institutions as the National Institute of Health, U.S. and Natural History museums in Paris and New York, who are investigating the properties analgesic and antibacterial substances secreted by some of these frogs. Herpes, heart disease, sclerosis, Alzheimer's or Down syndrome are some of the diseases that poison frogs and toads can help treat. While in the West frogs have only been appreciated for who could offer their succulent legs, in China or the Amazon, these animals are captured, even pampered, to exploit the properties of their skin glands. In the case of Indian tribes, to poison their arrows and soothe the pain. The liquid exude common toads (Bufo bufo) for hundreds of years used in China to contain bleeding and stimulate vegetative functions. But it was above all thanks to one man, the researcher John Daly, the National Institute of Health, United States, as science has known of the existence of the therapeutic properties that secrete toxins toads and frogs. Daly has identified over 300 chemicals from frogs pharmacological interest and has even "baptized" many of them captured in his travels through South America. This is the case of Phyllobates terribilis, a small green frog whose name stems from the fact of being the world's most poisonous frog. A single copy can kill fifty people.