The latest onslaught on winter weather is hardly the most appropriate time to talk about frogs, unless you’re the education/wildlife specialist for a Soil and Water Conservation District. As I’m ...

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 ...

Color in leopard frogs is determined by a gene that has two forms, or alleles, G and g. Each frog has two alleles, and frogs with genotypes GG or Gg are green, while gg frogs developmental rates ...

Recently I visited a wonderful place called the Cape County Conservation Nature Center. While there I photographed these two complacent frogs. The frog on top is a gray tree frog. The one it is ...

In a remote part of Australia, researchers recently stumbled upon an unusual, blue-skinned tree frog. This individual is a rare genetic mutant of the magnificent tree frog, a large amphibian that’s ...

Ptychadena nana individuals with green and brown color morphs. Image courtesy of Sandra Goutte. A team of researchers at NYU Abu Dhabi (NYUAD) has uncovered how a common color variation in frogs has ...

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 ...