Glass frogs evolved one of the strangest camouflage systems ever discovered, becoming nearly invisible by hiding most of their red blood cells inside a reflective crystal-covered liver. Resting ...

Poison frogs are small and brightly colored amphibians that originate from Central and South America. As suggested by their name, these frogs can release highly toxic chemicals from their skin, which ...

Frog eggs attract hungry predators, and this tiny father can only defend them from the smallest attackers. Just above him lives a tiger tarantula, a powerful ambush hunter. Together, they form an ...

Poison frogs appear to have built their chemical defenses gradually: related frogs store low to moderate levels of ...

Toads are frogs that have a more robust, short-legged and rough-skinned form and are more terrestrial. They have relatively dry, warty skin and prominent parotoid glands behind the eyes, which can ...

Regimbartia attenuata beetles have the ability to survive being eaten by frogs by actively crawling through the predator's digestive system and exiting through the cloaca alive. Shinji Sugiura You ...