An Asian butterfly's white wings tipped with vibrant red-orange are not only eye catching, they contain a poison, scientists have found. They share this venom with an unlikely counterpart ...

A Beautiful World: When the last butterfly flaps its wings The bay checkerspot is one the six rarest butterfly species on earth. It's also on the verge of extinction.

BUFFALO, N.Y. -- The beautiful patterns on butterfly wings are emerging as exceptional model systems that may reveal much about how the shapes, sizes and colors of specific organisms have evolved ...

This butterfly emerged from its chrysalis at Iowa State University's Reiman Gardens in 2008. Half of its body is male, with a male's orange, black and white wing.

Deep in the constellation Scorpius, a cosmic butterfly spreads its wings. Meet NGC 6302, an enormous shell of glowing gas better known as the Butterfly Nebula.

A rare butterfly that went extinct in Britain more than 100 years ago has been spotted in a popular beauty spot in Dudley.

The full grown morpho rhetenor butterfly, a native to South America. The blue morpho butterfly shows off its brightly colored wings when in flight. But at rest, with closed wings, the butterfly ...