Experts by Last Name: T
Mark Thiessen
Mark Thiessen began shooting for National Geographic in 1990. His numerous articles for National Geographic magazine include "Monsters of Madagascar" (August 2000), "Russian Smokejumpers" (August 2002), and a recent series on wildfires... More »
Tierney Thys
National Geographic Emerging Explorer, Tierney Thys, is a marine biologist and documentary filmmaker whose work explores the breadth of animal diversity from pole to pole and chronicles global environmental change. Tierney is a world authority on the giant ocean sunfish, Mola mola, and has led numerous expeditions worldwide from Africa to Baja, Japan, Indonesia and the Galápagos Islands to study these bizarre jelly-eating behemoths... More »
Carl Tobin
Carl Tobin is an Associate Professor of Environmental Science and Outdoor Studies at the University of Alaska in Fairbanks. He has studied human-caused damage in a riparian zone in Colorado, written a book on the climbing history of a section of the Alaska Range, and mentored students in environmental issues that include the effects of vehicle erosion on public lands, changes in wetlands in the Anchorage area, and re-vegetation of abandoned oil drilling sites... More »
Amy Toensing
National Geographic photographer Amy Toensing grew up in New England and has covered stories from her own backyard like Monhegan Island, Maine and the Jersey Shore to people and places on the other side of the globe, including the remote jungles of Papua New Guinea and the Australian outback. Her stories are often intimate essays reflecting the lives of ordinary people... More »
Raul Touzon
A resident of Miami, Raul Touzon has traveled extensively documenting indigenous cultures. His evocative photographs have appeared in many publications, including National Geographic Traveler and National Geographic magazine and are represented in the National Geographic Image Collection... More »
