Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

Blue is one of the rarest colors in the animal kingdom, and unlike other pigments found in nature, most blue creatures don’t actually produce blue pigment. Instead, their color comes from structural ...

Some animals do not have red blood like humans. From spiders to octopuses, their copper-rich blue blood helps them survive ...

Apart from fossils, some animal species also testify to how big their predecessors were before evolution. Although many of ...

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 ...

Peacocks, panther chameleons, scarlet macaws, clown fish, toucans, blue-ringed octopuses, and so many more: The animal kingdom has countless denizens with extraordinarily colorful beauty. But in many ...

When we think of blood, the colour red usually comes to mind. But in the animal kingdom, some creatures have blood that ...

The ocean is home to some of the most stunning colours in nature, but few are as mesmerising as the vibrant electric blue seen only in the rarest of the rarest animals. These creatures seem as if they ...

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 color blue is a very common favorite color for humans, but it is not seen in plants and animals very often. According to scientists from the University of Adelaide in Australia, this is partially ...