The Panoan tribes that practice the poison frog ritual call it kambo or kampo in their language. The tree frog is stretched by strings tied to its limbs. Tree frogs are referred to as “sapos,” in spanish hence the term sapo as sometimes used to refer to the indigenous medicine, kambo. As painful as it may look, the tree frog is not harmed during the process in which the poison is harvested from its skin. Traditionally, older men scrape the epidermis of the frog with a wooden stick to remove the toxin. After harvesting the poison, the frog is released unharmed. To the Matses, harming the frog could offend animal spirits and resulting in severe misfortune.