The world’s largest butterfly tree of life is helping researchers determine where the winged insects originated when they first appeared on Earth about 100 million years ago. During the age of ...

(CNN) — The world’s largest butterfly tree of life is helping researchers determine where the winged insects originated when they first appeared on Earth about 100 million years ago.

A friend from Phoenix told him about Butterfly Wonderland, which also boasts a “world’s largest” status as an indoor butterfly pavilion. On the Salt River Reservation just east of Scottsdale ...

Oil palm plantations are threatening the rare species' habitat. Oct. 13, 2012— -- Papua New Guinea is home to the world's largest butterfly, but oil palm plantations are threatening the rare ...