A gray wolf in Yellowstone National Park.

Wolves to Lose Protection in Idaho and Montana

Since the first wolves were reintroduced in Yellowstone National Park in 1995, the population has grown to 1,500 or more


Interview: Steven Amstrup

A new study spotlights the plight of the polar bear, but there's still time to help the beloved creature


Turning the Tide

Our oceans are in trouble, says Nancy Knowlton. But it's not too late to do something about it

"It's a crisis on top of a crisis," says May Berenbaum about the honeybee decline.

Interview: May Berenbaum

On the role of cellphones, pesticides and alien abductions in the honeybee crisis

Clouded leopard

Clouded comeback?

Smithsonian zoologists are attempting to breed the rare clouded leopard

In the past decade or so, over 95 percent of India's vultures have died.

Soaring Hopes

The first two Asian vultures breed in captivity

The South American monkey frog and some other tree frogs can endure sunlight and dry air for long periods.

Wild Things: Life as We Know It

Tree frogs, conservation maps and the northern swordtail fish


Interview with John Seidensticker and Susan Lumpkin

The authors of "Building an Arc" talk about wildlife conservation and what drew them to work with tigers.

Because Africa's scarcest natural resource is water, environmentalists say the hippo, or "river horse" (in the Democratic Republic of Congo, where poachers have devastated hippo populations), will increasingly come into conflict with people.

Hippo Haven

An idealistic married couple defy poachers and police in strife-torn Zimbabwe to protect a threatened herd of placid pachyderms

35 Who Made a Difference: Daphne Sheldrick

When feelings of kinship transcend the species boundary

35 Who Made a Difference: Mark Plotkin

An ethnobotanist takes up the cause of rain forest conservation


A Puzzle In the Pribilofs

On the remote Alaskan archipelago, scientists and Aleuts are trying to find the causes of a worrisome decline in fur seals


Walking the Grizzlies' Road, Yellowstone to the Yukon

Trekking 2,000 miles across rugged wilderness, biologist Karsten Heuer has braved bears and avalanches on behalf of a bold conservation initiative

A Census of the Wild

A government report takes a look at what we have left and where we are heading

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