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Ecology

Barro Colorado Island, on the Panama Canal, is home to at least 74 bat species. A group of German researchers is studying them all to understand the spread of diseases.

A Night in the Forest Capturing Bats

Our intrepid reporter joins tropical bat researchers in the field one night and gains some appreciation for their fangs

A curious, rare snow leopard checks out the researchers' camera trap.

Cool Finds

The Elusive Snow Leopard, Caught in a Camera Trap

Researchers managed to capture images of notoriously elusive snow leopards in Pakistan

A fringe-lipped bat bits into a túngara frog.

New Research

Crazy Stupid Love: The Frog With a Mating Call That Also Attracts Predators

The sound and water ripples produced by the túngara frog’s mating call are picked up by predatory bats

A three-toed sloth.

New Research

What Drives a Sloth’s Ritualistic Trek to Poop?

Scientists trace the odd bathroom behavior to relationships with bacteria and moths that inhabit their fur

Please look but don't take.

Beach Tourists Who Collect Shells May Be Harming the Environment

At one beach in Spain, increasing numbers of tourists have caused a 60 percent decline in shell abundance, potentially disrupting the aquatic ecosystem

California redwoods can live for more than a thousand years.

Save the Big Trees!

A large tree grows more quickly and sucks up a lot more carbon than a smaller one, scientists find

A dingo walks along a road in southern Australia.

Maybe Dingoes Don’t Deserve Their Bad Rap

Studies show that Australia’s “favorite scapegoat” most likely didn’t kill the Tasmanian tiger

A grey wolf in Yellowstone National Park.

Top Carnivores Help Shape Nearly Every Aspect of Their Environment

From controlling other animals’ numbers to affecting carbon storage, the predators’ vital roles in ecosystems justify their conservation, scientists say

Ask Smithsonian 2017

What Happens to All the Salt We Dump On the Roads?

In the U.S., road crews scatter about 137 pounds of salt per person annually to melt ice. Where does it go after that?

A tobacco hornworm caterpillar chowing down on a wild tobacco plant in the Great Basin Desert, Utah

Caterpillars Repel Predators With Second-Hand Nicotine Puffs

As far as spiders are concerned, caterpillars have a case of very bad breath

A black mangrove has taken root in this salt marsh in St. Augustine, Florida.

Fewer Freezes Let Florida’s Mangroves Move North

Climate change has extended the range in which mangroves can survive the winter, letting them take root farther north and invade salt marshes

Six Things We Learned About Our Changing Climate in 2013

Scientists are in agreement that human activities are altering our climate—and it’s an illusion that the pace of changes seems to have slowed down

A new species of tapir, a herbivorous mammal, was discovered in the Amazon earlier this month.

A Recap of Our Five Favorite New Species of 2013

An owl, a cat, a dolphin, and of course the olinguito, are among this year’s biggest new species finds

Campylaspis costata, a species of crawfish recently discovered in Norway.

Look Closely, And You Can Find New Species—Even in Well-Explored Countries Like Norway

Determination is all that’s needed to discover new species

There Is a Way to Make Lion Hunting Good for Lions

A contentious issue may have a bright side

Frozen seafood in the lab, ready for DNA testing.

The DNA Detectives That Reveal What Seafood You’re Really Eating

Genetic sequencing allows scientists to uncover increasingly prevalent seafood fraud

More Than Three Years Later, Oil From the Deepwater Horizon Persists in the Gulf

Continued testing has found evidence of oil in the water, sediments and marine animals of the Gulf

Santa could make his home on floating sea ice, but the Arctic may be ice free as early as 2016, according to the U.S. Navy.

Six Ways Climate Change Is Waging War on Christmas

If Santa really lived at the North Pole, he would have drowned long ago—his icy abode is slowly melting

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These Carnivorous Plants Glow Under Ultraviolet Light to Attract Prey

Their florescent blue glow lures ants to their death. Mask it, and the plants barely catch any

This flashy male chameleon is deadly beautiful to his competitors.

The More Rainbow Bright a Chameleon, the Greater His Battle Prowess

Male chameleons quickest on the color-changing draw and sporting the brightest palette tend beat out duller competitors

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