the best science on the web about
endangered & threatened species

Endangered Species
Image: National Geographic/Michael Nichols

Endangered Species

Two losses — of habitat and genetic variation — are the main reasons species become endangered, or threatened by extinction.

Research the causes of these losses, how species are classified according to their level of threat, and what people have done to reverse the damage.

National Geographic
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Quiz: Which Endangered Big Cat Are You?

Quiz: Which Endangered Big Cat Are You?

Big cats are among the most endangered species on our planet. Learn about rare cats and see how your preferences match up with some of their traits. More...

Interactive
Sierra Club
Endangered Animals Game

Endangered Animals Game

"Catch" these endangered animals and answer their questions. Click quickly to find out why they're endangered. More...

Game
Sheppard Software
Silent Streams

Silent Streams

Almost half the 573 animal species on the threatened and endangered list in the U.S. live in freshwater. Research how captive-breeding programs are trying to address that in Tennessee. More...

Article
National Geographic
Vampire Squid Turns Inside Out

Vampire Squid Turns Inside Out

Will human activity wipe out this cephalopod after nearly 300 million years? Watch it turn itself almost inside out. More...

Video
National Geographic
Giraffe Population Drops 40% in 15 Years

Giraffe Population Drops 40% in 15 Years

Take a look at the "silent extinction" of the giraffe population in Africa, where numbers have dropped by 60,000 in the past 15 years. More...

Article
Discovery
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Pacific Leatherback Turtles’ Alarming Decline Continues

Pacific Leatherback Turtles’ Alarming Decline Continues

The largest of all living turtles, leatherback sea turtles inhabit oceans around the world. In the past 30 years, however, the Pacific population has declined a staggering 95%. Find out why. More...

Article
LiveScience
Rare Arabian Leopard Needs Protection

Rare Arabian Leopard Needs Protection

Years of deforestation and habitat destruction have put the Arabian leopard and oryx on the brink of extinction. Slowly, these animals are making a comeback, in captivity at least. More...

Video
BBC
Will Cloning Ever Save Endangered Animals?

Will Cloning Ever Save Endangered Animals?

Cloning isn’t effective for saving endangered species…yet. Research the challenges, as well as why some biologists think it may be possible in the future. More...

Article
Scientific American
Black-Footed Ferrets: Reintroduction Program

Black-Footed Ferrets: Reintroduction Program

Once considered extinct, the black-footed ferret is back in Kansas. See why these endangered weasels nearly disappeared, and take a look at the program that saved them. More...

Video
KTWU
Burning Season: Endangered Animals in the World’s Forests

Burning Season: Endangered Animals in the World’s Forests

Clearing forests through logging or burning contributes to loss of habitat. Take a look at some mammals and birds around the globe threatened by deforestation. More...

Images
PBS
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Butterfly Decline Signals Trouble in Environment

Butterfly Decline Signals Trouble in Environment

Two butterfly subspecies are probably extinct in South Florida, thanks to loss of habitat and pesticides. And other important pollinators are facing a similar problem. More...

Article
Washington Post
Endangered Insects

Endangered Insects

They often show up when you least want them, so insects may not appear to be in danger. But more than half are endangered. Get details about their declines and why it’s important to save them. More...

Article
Endangered Species International
Endangered Species Act: An Overview

Endangered Species Act: An Overview

The Endangered Species Act protects and recovers threatened and endangered species and their ecosystems. Uncover details about one of our most important environmental laws. More...

Video
U.S. Fish and Wildlife Service
ESA Success Stories

ESA Success Stories

Ever since the Endangered Species Act became law, many species and habitats have stabilized. Discover the endangered species in your state, and how they’re being helped. More...

Interactive
U.S. Fish and Wildlife Service
Just Eat It: How to Save Endangered Food

Just Eat It: How to Save Endangered Food

You may not believe that eating will save anything, but that’s what biologists encourage. Take a bite and find out how biodiversity is important to our survival. More...

Article
Sierra Club
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Madagascar’s Bamboo Lemurs Fight for Survival

Madagascar’s Bamboo Lemurs Fight for Survival

Slash-and-burn farming and deforestation have put the greater bamboo lemur on the endangered species list. Yet, the effects of climate change on their teeth is what "may ultimately doom the species." More...

Video
NPR
Massive Solar Plant a Stepping Stone for Future Projects

Massive Solar Plant a Stepping Stone for Future Projects

A solar energy project in California’s Mojave Desert will power 140,000 homes and provide renewable energy. Investigate the effect the project has on one native inhabitant: the desert tortoise. More...

Article
NPR
Mediterranean and Black Sea Sharks Risk Extinction

Mediterranean and Black Sea Sharks Risk Extinction

Thanks to overfishing and other bad practices, shark populations in the Mediterranean and Black Sea may go extinct. Research what this means for the ecosystems of these seas. More...

Article
FAO/UN
Nevada Wildfire Could Snuff Out a Rare Butterfly

Nevada Wildfire Could Snuff Out a Rare Butterfly

Wildfires can take out thousands of acres at a time. But could the 2013 Nevada wildfire also wipe out a rare butterfly species by destroying its habitat? More...

Article
NPR
Northern Hairy-Nosed Wombat

Northern Hairy-Nosed Wombat

The least common of the 3 wombat species, the northern hairy-nosed wombat, lives in eastern Australia. Only about a 100 remain in the wild. Explore the lifestyle of this critically endangered marsupial. More...

Article
Wildlife Preservation Society of Queensland
Rare and Endangered Plants Gallery

Rare and Endangered Plants Gallery

Take a look at rare and endangered plant species, from a baseball-shape cactus to many delicate flowers to brightly colored seeds in pods. More...

Images
United States Botanic Garden
Rare Video of Endangered Shorebird

Rare Video of Endangered Shorebird

See rare footage of newly hatched spoon-billed sandpipers in the Russian wild. This species is facing extinction as coastal wetlands along the East Asian-Australasian Flyway disappear. More...

Video
National Geographic
Red List

Red List

If you’re worried about a specific species, look here to see if it’s listed as "least concern," "vulnerable," "endangered," or "extinct" — and why. More...

Interactive
International Union for Conservation of Nature
Saving One Species at the Expense of Another

Saving One Species at the Expense of Another

To bring the trumpeter swan back from the brink of extinction in Montana, biologists almost destroyed the Arctic grayling population. Find out how they’re trying to fix things for this fish. More...

Article
NPR
Sawfish Lagoon

Sawfish Lagoon

Think you have what it takes to catch a sawfish? Of course, fishing for endangered species is never a good idea. But this fun game gives you the chance to virtually reel them in. More...

Game
JLBN
Scientist Profile: Whale Scientist

Scientist Profile: Whale Scientist

Marine biologist Ed Lyman helps rescue humpback whales — an endangered species — caught in fishing lines or hit by boats. Watch him at work. More...

Profile
DragonflyTV/PBS
Thai Conservationists Release Endangered Turtles Back into Sea

Thai Conservationists Release Endangered Turtles Back into Sea

Critically endangered hawksbill turtles get some help from Thai navy personnel. For more than 20 years, they have given young hawksbills a healthy start before releasing them into the sea. More...

Video
BBC
The Loneliest Animals

The Loneliest Animals

Explore 5 endangered species hot spots in the world to learn about the animals large and small and in decline. More...

Interactive
NATURE/PBS
Threatened Species Have a Chance for Protection

Threatened Species Have a Chance for Protection

Hundreds of plant and animal species face extinction, but they may soon gain protected status. Discover some details about 9 deserving animal species. More...

Interactive
New York Times
Venkat Sankar: Google Science Fair 2013 Global Finalist

Venkat Sankar: Google Science Fair 2013 Global Finalist

Venkat is all for renewable energy — as long as it doesn't hurt endangered species. See how he used computer simulations to find a modified plant footprint that would reduce habitat loss for the giant kangaroo rat population. More...

Profile
Google Science Fair
Washington Inmates Help Protect Endangered Frog, Prison Budget

Washington Inmates Help Protect Endangered Frog, Prison Budget

Inside a correctional center, endangered Oregon spotted frogs are being raised for release into the wild. Investigate how water conservation led to an animal reintroduction project. More...

Video
PBS NewsHour
West’s Love of Talc Threatens India’s Tigers

West’s Love of Talc Threatens India’s Tigers

Once hunted to the edge of extinction, the Indian tiger is threatened again. Discover the link between beauty products and this animal’s shrinking habitat. More...

Article
The Guardian

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