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 ...

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 ...

Rare ‘galaxy frogs’ vanish from India’s Western Ghats as photography tourism damages their habitat, highlighting urgent ...

Think of nature and we think of color: a red sunset, a green forest, a blue ocean. Such scenes, simply described and instantly imaginable, are actually made up of a myriad of hues, tints, and ...

Animals with blue eyes are a rare occurrence in nature due to being linked to recessive genetics, mutations, and specific genes. Despite that, many species still have beautifully rich blue eyes. While ...

Blue is one of the rarest occurring pigments found in nature. Sure, the sky and the ocean are blue, while green, yellow, and red animals are abundant, almost no blue animals exist. Blue's elusive ...