Anthony Di Fiore of New York University used GPS technology and camera traps to study the behavior of male spider monkeys in Ecuador.

Ron Eglash of the Rensselaer Polytechnic Institute used culturally situated design tools to teach math to students in Ghana.

Chris Filardi of the American Museum of Natural History studied evolution and conservation in the Solomon Islands.

• Slide Show: Cloud Forests, Birds and the Origins of Island Life

Brian Fisher of the California Academy of Sciences collected insects in the Makay-Massif geological formation in Madagascar.

John Goodge of the University of Minnesota-Duluth and Jeff Vervoort of Washington State University studied and collected rocks in Antarctica.

• Slide Show: Rocks, Ice and Science in Antarctica

Terry Gosliner of the California Academy of Sciences traveled to the Philippines to look for colorful sea slugs called nudibranchs.

• Slide Show: The Wonderful World of Sea Slugs

George E. Harlow of the American Museum of Natural History studied the origin of jade in Guatemala's Motagua Valley.

Takeshi Inomata and Daniela Triadan of the University of Arizona excavated the Maya site of Ceibal in Guatemala.

Bonnie F. Jacobs of Southern Methodist University studied fossils of ancient plant life in Ethiopia.

Lekelia D. Jenkins, a postdoctoral researcher at the University of Washington, studied the cross-cultural adoption of marine conservation technologies in Ecuador.

Roland Kays of the New York State Museum compared the behavior of fishers in urban and wild settings in the Albany, N.Y., area.

Jeffrey Marlow, a graduate student at the California Institute of Technology, studied the roles of micro-organisms in deep ocean vents off the coast of Oregon.

Michael J. Mascarenhas of the Rensselaer Polytechnic Institute conducted a survey on water and sanitation issues in Rwanda.

Christopher J. Raxworthy, a herpetologist with the American Museum of Natural History, searched for new chameleon species in Madagscar.

• Slide Show: The Chameleons of Madagascar

Dustin Rubenstein of Columbia University studied the physiological adaptations of birds to climate change in Kenya.

Stuart Sandin of the Scripps Institution of Oceanography compared the coral reefs of inhabited and uninhabited parts of the Line Islands.

Noah Snyder-Mackler, a graduate student at the University of Pennsylvania, studied the evolution of social behavior in the gelada, a primate found in Ethiopia.

Eleanor Sterling of the American Museum of Natural History surveyed gray-shanked doucs in Vietnam and studied sea turtles at Palmyra Atoll.

Melanie Stiassny of the American Museum of Natural History surveyed and collected fresh water fish in the Malebo region of the Congo and Kasai Rivers.

Douglas Stotz of the Field Museum and Nigel Pitman of Duke University took a biological inventory of a vast roadless area in Peru's northern Amazon.

• Slide Show: Counting Species in Peru

Steve Zack of the Wildlife Conservation Society surveyed conservation needs in Arctic Alaska.

• Slide Show: Surveying Wildlife in Arctic Alaska