The morpho butterfly flashes perhaps the most stunning blue in the animal kingdom. But here's the weird bit: That's no pigment. It's actually a trick of light, thanks to some fancy nano-level ...

The morpho butterfly appears blue but it isn't actually. It looks blue not because of pigment but because of some very fancy scales on its wings. Released on 12/19/2016 ...

The California Academy of Sciences is leading an effort to bring back the Xerces blue butterfly, which went extinct around ...

“Blue is one the rarest colors made as a pigment,” notes Ryan Null, a graduate student in Patel’s lab. “Most animals can’t produce blue pigments.” Varying species of Morpho butterflies. (Jenny Oh/KQED ...

The disappearance of the charismatic butterfly galvanized a budding insect conservation community.These conservation efforts have led to success saving some of the Xerces blue’s neighbors in the San ...

These formations refract specific light wavelengths to produce a brilliant blue. Other structures create similar effects: for example, helically arranged cellulose microfibers make marble berries ...

A 93-year-old Xerces blue specimen’s DNA shows that the butterfly is a distinct species, making it the first U.S. insect humans drove to extinction.

Scientists are trying to uncover how light and colour affect butterfly behaviour. ... This means colours for humans are made up of different amounts of blue, green and red, ...