Figure 14

Species of Hawaiian honeycreepers descended from a common ancestor, some of which are shown here, have evolved many different bill shapes and food sources. (Paintings copyright H. Douglas Pratt, The Hawaiian Honeycreepers: Drepanidinae. Oxford: Oxford University Press, 2003. Diagram adapted from T.J. Givnish and K.J. Sytsma, eds., Molecular Evolution and Adaptive Radiation. Cambridge: Cambridge University Press, 1997.)

Figure 15

Species of crickets that live underground in Hawaii have reduced eyes and pale color compared to the surface-dwelling species that colonized the islands. (Photograph courtesy of William P. Mull.)