is the Edwin K. Hunter Chair for Communication in Science Research, Professor in the Department of Biological Sciences and Curator of Fishes at the Museum of Natural Science at Louisiana State University. He is also a Research Associate at the American Museum of Natural History and the Smithsonian National Museum. He is a systematist and an ichthyologist studying the evolution and biogeography of both freshwater and marine fishes. His work includes studies of Neotropical (Central and South America, Caribbean) and Indo-West Pacific (Indian and Western Pacific Ocean) fishes. His natural history collecting efforts include trips to Japan, Australia, Taiwan, Madagascar, Panama, Kuwait, and many other countries. He has described over a dozen new species including several new cavefishes. He is a TED Senior Fellow, an Elected Fellow of AAAS (American Association for the Advancement of Science), a National Fellow of the Explorers Club, a Fellow of the Linnean Society, a Fulbright Distinguished Chair and a National Geographic Certified Educator. He is the past Faculty Director of the LSU Center for Collaborative Knowledge, Past President of the American Society of Ichthyologists and Herpetologists and is currently on the Board of Directors for the National Center for Science Education.