Phyllobates terribilis thrive in the hot and humid rainforests of the pacific coast of Colombia. The golden poison frog is the most poisonous amongst all of the 175 species of dart frogs. Its skin is covered with a thick coat of alkaloid poison which is a poison commonly found on dart frogs. The poison prevents the nerves from sending signals to each other leaving the muscles and organs unresponsive and inactive, thus killing its predator; it does not use its poison against prey. According to the American Museum of Natural History, this species is the most poisonous animal on earth with the potential to kill about ten thousand mice or ten to twenty men. These poisonous creatures only boast a size of about 3.5 cm with females usually being bigger than males. Like all dart frogs, they contain their poison though their diet which consists of small insects and arthropods, but it is not clear what animal species is responsible for its deadly toxin. Then in actuality, the animal supplying the golden dart frog its high toxicity, may actually be the most poisonous creature on earth.