page_title: Poisonous amphibian
section_title: Toxic amphibians
hierarchical_section_title: Poisonous amphibian / Toxic amphibians
caption_attribution_description: English: Rhinella marina, Cane Toad from the Philippines. An invasive species locally known as American Frog.
context_page_description: Poisonous amphibians are amphibians that produce toxins to defend themselves from predators.
  Except certain salamandrid salamanders that can extrude sharp venom-tipped ribs, and two species of frogs with venom-tipped bone spurs on their skulls, amphibians are not known to actively inject venom. Most toxic amphibians are instead known to be poisonous to touch or eat. Amphibians usually sequester toxins from animals and plants on which they feed, commonly from poisonous insects or poisonous plants. One example of this is the well-known poison dart frog. They get a deadly chemical called lipophilic alkaloid from consuming a poisonous food in the rainforest. They are immune to the poison and they secrete it through their skin as a defense mechanism against predators. This poison is so efficient, the native people of the South American Amazon rainforest use the frogs' toxins on their weapons to kill their prey, giving the frogs their nickname the "poison dart frog". Some people use the bufotoxins of some species of toxic toads as a drug to get high, but this can become very dangerous.
context_section_description: Frogs and toads
  American toad
  Asiatic toad
  Cane toad
  Colorado River toad
  Common toad
  Corroboree frog
  European green toad
  Fowler's toad
  Mantella
  Panamanian golden frog
  Poison dart frog
  Salamanders
caption: Cane toads are a big problem in Australia, because the native predators are unaware of this toad's toxic skin and soon die when they devour this foreign amphibian.
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