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 ...

But butterfly wings are flat. How do butterflies fly? Robert Kacmarcik, Green Valley, Arizona Flat-winged insects also generate lift by using their wings as airfoils, says Robert Dudley ...