Above, the real deal; below, the clay models used to test predators' reactions to local and foreign frog markings. Sometimes, you have to make a thousand frogs from modelling clay to make your point.

Poisonous frogs produce and store alkaloid poisons or toxins in their skin, which makes them harmful to touch. They are commonly called poison arrow frogs or poison dart frogs. This is because Native ...

Skin contact with the oil of a poison sumac plant leads to an itchy, burning, allergic skin reaction. You can’t contract the rash from another person, but the plant’s oil can transfer from your ...