While poking around the garden the other day I found an adorable visitor, a small frog called a gray tree frog (Hyla versicolor) resting among the brightly colored flowers. This amazing little ...

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 ...

Frogs are some of the most widespread amphibians in the United States, thriving in pretty much any area with plenty of water, ...

Researchers found a new species of “robust” and color-changing tree frogs in China, according to a new study. Photo by Guohua Yu via Zoosystematics and Evolution A group of green-skinned creatures ...

Some ocean animals have a clever form of camouflage—they’re transparent. But being see-through is far less common on land. “And there’s a few reasons why that may be.” Jim Barnett is a postdoctoral ...