books.google.com.au - Adaptive radiation, which results when a single ancestral species gives rise to many descendants, each adapted to a different part of the environment, is possibly the single most important source of biological diversity in the living world. One of the best-studied examples involves Caribbean "Anolis...http://books.google.com.au/books/about/Lizards_in_an_Evolutionary_Tree.html?id=fyu6xlGnsc0C&q=crown-giant&utm_source=gb-gplus-shareLizards in an Evolutionary Tree
