David Nellis is chief of the Bureau of Wildlife of the U.S. Virgin Islands, where he has lived and worked for more than 40 years. He earned his doctorate from the University of Georgia. He has walked the beaches and studied the strand plants of major tropical island groups in all the oceans and the tropical shores of all the continents. He has visited almost all of the Caribbean Islands and left little of the south Florida coastline untrodden. When he’s not scuba diving or photographing natural subjects, he enjoys propagating wild plants.