A baby penguin and its parent greet the disguised rover.

Rovers Disguised as Baby Penguins Can Quietly Infiltrate Penguin Colonies

Normally wary penguins seem unfazed when there's a smartly dressed robot in their midst

An Espanola Galapagos giant tortoise under an arboreal prickly pear cactus. The cactus is a vital part of the tortoise's diet, but the surrounding woody plants - a leftover problem caused by goats - prevent the cactuses from regrowing.

Giant Tortoises Have Made a Comeback From 15 to 1,000

Española giant tortoises have been reintroduced to Galapagos National Park and are breeding on their own

The King receives members of Scott's expedition at Buckingham Palace in England here. Shown are Lt. Bennie, Paymaster Drake, Paymaster Drake, Commander Campbell, Commander Evans, Commander Bruce, and Sir Levick, 1913.

Antarctic Explorer’s Journal Found In Melting Ice

George Murray Levick served as a photographer, zoologist and surgeon with the North Party

Located on the Rhode River of the Chesapeake bay, the Smithsonian Environmental Research Center's new laboratory building emits 37 percent less CO2 and cuts energy costs by 42 percent.

A New Environmental Science Lab Now Walks the Walk, Cutting Its Overall Emissions by 37 Percent

With geothermal heating, on-site water reclamation and a host of other energy saving technologies, the Smithsonian's first LEED-Platinum building opens

A chimp steals a glance at a photographer in Uganda's Kibale National Park.

Chimps Caught in First Known Nighttime Crop Raids

“The nightlife of chimpanzees has been neglected,” say researchers who filmed wild animals using a fallen tree as a bridge into protected cornfields


This Photographer Set Out on a Quest to Rediscover the World's Lost Species of Frogs

Some of the subjects are new to science, others haven't been seen in 15 to 160 years

A critically endangered black rhino in Namibia.

In an Effort to Stop Poaching, Namibia Will Remove All of Its Rhinos’ Horns

That extreme measure will likely not be enough to stop the killing, however, so the country is also bolstering its anti-poaching patrols


See How Humans Have Reshaped the Globe With This Interactive Atlas

Zoomable maps reveal the scope of humanity’s influence on Earth—and the innovations aiming to create a more sustainable future

For the time being, at least, the lands near the Grand Canyon will not be converted into something resembling this uranium mine in New Mexico.

The Grand Canyon Will Not Be Mined for Uranium

Uranium mining will be banned for the next 20 years on nearly 1 million acres of land near the Grand Canyon

The Park Service Wants to Cull 900 of Yellowstone's 4,900 Buffalo

The Park Service will be killing bison that stray from the park

Cheetahs taking it easy in the Kalahari desert, Botswana.

Cheetahs Spend 90 Percent of Their Days Sitting Around

When human presence forces cheetahs to expend more energy, however, it put the animals' survival at risk

An endangered green sea turtle in Hawaii that has contracted fibropapillomatosis.

Pollution From Hawaii Is Giving Sea Turtles Gross, Deadly Tumors

Nitrogen runoff gets into the turtles' food and causes tumors on their faces, flippers and organs

Wildlife Around the World Has Declined by About 50 Percent Since 1970

Fish, birds, mammals, amphibians and reptiles are disappearing quickly

Deforestation in Liberia

Norway Is Paying Liberia To Stop Deforestation

Norway is promising Liberia $150 million to stop cutting down trees by 2020

Coho salmon, here in full vivid spawning colors, are one of many species of wild Pacific salmon in danger of extinction.

What Can Humans Do to Save the Pacific Northwest's Iconic Salmon?

The fish is facing an upstream struggle to survive. Can human ingenuity find a solution?

Why We Shouldn't Worry About Growing Plants With Recycled Water

Trace amounts of common pharmaceuticals show up in crops grown with recycled water, but not as much as you'd think

A shop sells nostalgic souvenirs, including a UK coat of arms, at the Portobello Road market in London.

Ten Unusual National Animals That Rival the Unicorn

Scotland doesn’t have the market cornered on exotic national symbols—check out the mouflon, the takin and the xoloitzcuintli

Detroit's Dumps Are Slowly Being Reclaimed By Nature

Some illegal dumping grounds in Detroit are being repopulated by hardy plants

Sugar gliders, marsupials native to Australia.

Adorable Portraits Put Nocturnal Animals in the Spotlight

A new photo book showcases animals we humans rarely see—while a new study says we may have more in common with night-dwellers than thought

An inlaid alabaster unguent jar in the form of an ibex, with one natural horn, was found in the tomb of the pharaoh Tutankhamun.

Egypt’s Mammal Extinctions Tracked Through 6,000 Years of Art

Tomb goods and historical texts show how a drying climate and an expanding human population took their toll on the region’s wildlife

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