In Review
EVOLUTIONARY BIOLOGY Marvels of Madagascar
(Photo: Adam Fenster)Species argument: Leaf-tailed geckos native to Madagascar are among the species of reptiles and amphibians whose slowing rates of evolution may indicate the end of an evolutionary heyday for the African island. A new study by Daniel Scantlebury, a PhD student in biology, offers further proof of Darwin鈥檚 theory that adaptive processes slow as the evolutionary niches available to species are filled in. (Clockwise from top left: mossy leaf-tailed gecko, Uroplatus sikorae; Henkel鈥檚 leaf-tailed gecko, Uroplatus henkeli; mossy leaf-tailed gecko, Uroplatus sikorae; and cork-bark leaf-tailed gecko, Uroplatus pietschmanni.)