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

The poison dart frog may be tiny, but it is one of the most toxic animals on Earth. Found in the rainforests of Central and South America, these brightly colored frogs carry powerful toxins in their ...

A joint report alleging that a poison dart frog toxin has been linked to the death of Russian opposition leader Alexei Navalny rippled quickly around the globe among scientists. The allegations raised ...