Valerie C. Clark

When Endangered Lemurs Need a Home, This Is What You Build

By Drs. Valerie C. Clark and Patricia C. Wright of i.F.r.o.g.s. With forest destruction rampant in Madagascar, finding a good home is difficult for Nosy Be sportive lemurs. These nocturnal primates prefer spacious tree-hole housing to protect them from predators as they sleep all day, but big trees containing tree-holes are rare in degraded forests. Being critically…

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August 4, 2013: Running 135 miles through Death Valley, Swimming with Navy Seals, and More

Every week, embark with host Boyd Matson on an exploration of the latest discoveries and interviews with some of the most fascinating people on the planet, on National Geographic Weekend. Please check listings near you to find the best way to listen to National Geographic Weekend, or click the links after the descriptions below! Episode: 1331 – Air Date: August…

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August 4, 2013: Running 135 miles through Death Valley, Swimming with Navy Seals, and More

Every week, embark with host Boyd Matson on an exploration of the latest discoveries and interviews with some of the most fascinating people on the planet, on National Geographic Weekend. Please check listings near you to find the best way to listen to National Geographic Weekend, or click the links after the descriptions below! Episode: 1331 – Air Date: August…

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Science and Magic From a Giant Amazon Treefrog

Skin secretions collected from the Waxy Monkey Treefrog (Phyllomedusa bicolor) are used by the Matsés Indians of Peru for ‘hunter magic’–the secretions are burned into skin of humans, resulting in vomiting, passing out, then waking a few hours later to ‘feel like a god,’ ready to hunt! These indigenous people of the Amazon ‘milk’ the…

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Don’t Rake This Leaf

Lately, National Geographic has helped fund my research on toxic frogs in Madagascar‘s Ranomafana National Park. On a prior trip to that park, I encountered several snazzy reptiles to admire, including the aptly-named leaf tailed gecko, Uroplatus phantasticus, pictured above. No, that brown thing in the foreground isn’t a leaf—that’s really the gecko’s tail! This…

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Researchers, conservationists, and others share stories, insights and ideas about Our Changing Planet, Wildlife & Wild Spaces, and The Human Journey. More than 50,000 comments have been added to 10,000 posts. Explore the list alongside to dive deeper into some of the most popular categories of the National Geographic Society’s conversation platform Voices.

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