(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. During the age of ...
Delias sambawana, a butterfly that hails from Indonesia, at the Florida Museum of Natural History. Florida Museum photo by Kristen Grace and phylogeny by Hillis, Zwickl, and Gutell When Akito Kawahara ...
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