Blue may seem common in the sky and oceans, but in the animal kingdom it is actually one of the rarest colors in existence .

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 ...

Q. I live near Charleston, S.C., and recently spotted a blue anole sunning itself. I am familiar with our common green and brown anoles, but this one made me look twice. His tail had been severed and ...

The team collected 10 colonies and maintained them in aquariums for 21 days.

Known as by-the-wind sailors because of the way they catch the ocean breeze using the sail-like fin on top of their bodies, ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Blue blood may look alien, but it’s one of evolution’s most ...

Animals sculpt the optical properties of their tissues at the nanoscale to give themselves “structural colors.” New work is piecing together how they do it. Peacocks, panther chameleons, scarlet ...

Q. I live near Charleston, South Carolina, and recently spotted a blue anole sunning itself. I am familiar with our common green and brown anoles, but this one made me look twice. His tail had been ...