image: This is the common Indian Toad (Duttaphrynus melanostictus), an optimal range-expansion phenotype that originated from tropically-adapted ancestors endemic to the Western Ghats mountain range of the Indian subcontinent. This image relates to an article that appeared in the February 5, 2010, issue of Science, published by AAAS. The study, by Dr. I. Van Bocxlaer at Vrije Universiteit Brussel in Brussels, Belgium, and colleagues, was titled, "Gradual Adaptation Toward a Range-Expansion Phenotype Initiated the Global Radiation of Toads." view more
Credit: Image courtesy of Franky Bossuyt