This article has been reviewed by the following Topic Editor: Debbie Swarthout
Co-evolution (sometimes spelled coevolution) is an evolutionary interaction between two species such that the features of both species determine the evolutionary direction of the other species. For example, the interaction between hummingbirds and the length of the corolla of the flowers they visit. A long hummingbird beak selects for a long corolla tube and a long corolla selects for a long hummingbird beak.
Scott Mori (Lead Author);Scott Mori (Contributing Author);Debbie Swarthout (Topic Editor) "Co-evolution". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth March 21, 2010; Last revised Date March 21, 2010; Retrieved May 18, 2013 <http://www.eoearth.org/article/Co-evolution>