In a rainforest, small animals survive by hiding. By blending in with their environment until danger passes, many unique ...

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.

Natural selection has played a role in the development of the many skins patterns of the tiny Ranitomeya imitator poison dart frog. Natural selection has played a role in the development of the many ...

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 ...

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