Tony Gamble is an assistant professor at Marquette University in Milwaukee, Wisconsin, USA. His lab studies geckos and other reptiles to better understand evolutionary processes. Most of his current research examines the evolution, structure, and function of lizard genomes, particularly sex chromosomes. Another research interest is discovering the evolutionary relationships among gecko species. Dr. Gamble’s research involves field work around the world to catch geckos and then sequencing their DNA.
How do Geckos Determine Sex?
Most gecko species reproduce sexually and both a male and female are required for successful breeding. But how are the sexes produced? How does a gecko egg “know” to produce a male or female hatchling? Answering these questions depends upon which species of gecko you are talking about, because geckos have come up with a variety of ways to determine sex. More