wopa070501_d114Sanjayan is The Nature Conservancy's lead scientist. He works to ensure that the Conservancy is using the best ideas in science in order to implement its mission.

He has spoken at the World Summit on Sustainable Development in Johannesburg and at the Aspen Ideas Festival, been featured in numerous articles and TV shows in venues from the New York Times to the BBC to NBC's TODAY and has published in the journals Science and Nature, among others.

His column Wild Life appears regularly on

Sanjayan's Posts

Thelon Expedition: Life at Camp

August 2nd, 2011

So far there are two constants in the campsites that have been selected, they are poor for fishing and great for bugs. But once they settle in, what is life like in one of the most remote spots in North America? More

Thelon Expedition: Mosquitoes

August 1st, 2011

The pale walls of my tent are smeared in many places as if a little kid with fingers covered in chocolate had played inside. The smears are blood. More

Thelon Expedition: Caribou on the Barrens

August 1st, 2011

I write in the light of the endless Arctic dusk, filtered into a golden hue through the walls of my tent. Outside, I hear wolves howl across the river ... More

Thelon Expedition: Caribou and the Dene

July 28th, 2011

They had been out for two days when they sighted in the far distance a herd, and as the dogs surged forward in their excitement, Joseph lost his grip on the sled. When he tumbled on to the snow, his dad kept going ... More

Thelon Expedition: The Things We Carry

July 24th, 2011

The adventure begins with 14 people and 3,800 pounds of gear. Is what they carry too much, too little, or just enough? More

Thelon Expedition: “The Place Where God Began”

July 23rd, 2011

Our lead scientist is on a journey with young members of the Dene First Nation through ancestral lands, ending at a remote wildlife refuge. They're sending updates back so you can follow along. More

Follow the Thelon Expedition

July 22nd, 2011

Our lead scientist, Sanjayan, is on an expedition to a game sanctuary more than twice the size of Yellowstone, Glacier and the Serengeti parks combined! Follow his progress. More

Summer Book Picks: ‘Demon Fish’

June 28th, 2011

Need some reads for the beach or your summer vacation? Our scientists and staff have some great suggestions! Today, our lead scientist Sanjayan recommends Juliet Eilperin's "Demon Fish." More

The Best Dam Holiday Gift Ever

December 23rd, 2010

A project that will improve the lives of thousands of people and forever change how we define what’s possible in conservation--it doesn't get better than this, says our lead scientist. More

The Prowling Hour: Encounters with Lions in Kenya

June 28th, 2010

Our lead scientist Sanjayan has an extraordinary encounter with wildlife in a previously unexplored area of Kenya -- read about why he was there. More

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