%0 Journal Article %T Darwin and Huxley revisited: the origin of allometry %A Stevens Charles F %J Journal of Biology %D 2009 %I %R 10.1186/jbiol119 %X The relative sizes of parts of an organism frequently depend on the absolute size of the individual, a relationship that is generally described by power laws. I show here that these power laws are a consequence of the way evolution operates. %U http://jbiol.com/content/8/2/14