Q. You once wrote that blue pigment is not known to exist in any terrestrial or freshwater animals with backbones. I found a blue bullfrog in a marsh in Virginia. It was mostly blue with some gray ...

An elusive tree frog with a never-before-seen color mutation, was spotted and photographed in a remote part of northwestern Australia Blue mutation magnificent tree frog (Ranoidea splendida). The ...

Recently I had an opportunity to take pictures of green frogs at eye level. Green frogs (Lithobates clamitans) are a common frog here in Pennsylvania. They usually hang around ponds, lakes, ...

Indiscriminate feeding by an alien population of the carnivorous spotted-thighed frog -- could severely affect the native biodiversity of southern Australia according to a new study. Indiscriminate ...