Dinosaurs came in all shapes and sizes, but only the small, feathered variety survived.

Ancient Birds Avoided Mass Extinction By Shrinking

The shrinkage process was well underway before an asteroid brought doom to the dinosaurs 66 million years ago

Artist Todd McGrain's sculptures of five extinct North American birds are now on display in Smithsonian gardens.

Bronze Sculptures of Five Extinct Birds Land in Smithsonian Gardens

Artist Todd McGrain memorializes species long-vanished, due to human impact on their habitats, in his "Lost Bird Project"

Colorful archaea grow in in ponds.

How a Single Act of Evolution Nearly Wiped Out All Life on Earth

A single gene transfer event may have caused the Great Dying

Humans Killed the Moa, Genetics Study Suggests

Yet another species humans have the distinct honor of eradicating

The Anguilla Bank skink, a Caribbean species discovered along with 23 others in 2012, is vulnerable to extinction.

How Many Species Can We Find Before They Disappear Forever?

Biologists are in a race to locate and identify new species as habitats become victim to an industrialized world

A pair of Ammonite fossils, about 4 inches across, within a limestone bed very close to the Permian-Triassic boundary.

How Long Does Mass Extinction Take?

By figuring out the timing and rate of the world's most massive extinction 252 million years ago, scientists hope to figure out how such lethal events work

Hey you guys, got any flowers? I'm starving.

Did Flowers Take Out The Woolly Mammoth?

Some researchers think that the mighty beasts may have been bested by tiny flowers. Or, more precisely, the lack of them

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

We've Done So Well by Chesapeake Oysters, We Can Start Eating Them Again

Perhaps this time we can keep ourselves from eating them to oblivion

The London Zoo’s Brian Zimmerman looks for a cichlid in Madagascar.

Doomed Species May Be Saved—A Global Search Locates a Female

With this little fish facing down extinction, a global hunt turned up a few remaining wild individuals

Silhouette of the Tyrannosaurus called Stan. This "tyrant lizard king," was excavated and prepared by the Black Hills Institute.

The Top Ten Weirdest Dinosaur Extinction Ideas

Paleontologists, both professional and amateur, have dreamed up some bizarre explanations of how the dinosaurs disappeared from Earth


What Is the Anthropocene and Are We in It?

Efforts to label the human epoch have ignited a scientific debate between geologists and environmentalists


Beyond the Childhood Dinosaur Phase: Why Dinosaurs Should Matter to Everyone

Dinosaurs can help us unlock essential secrets about the history of life on Earth


The Saddest Dinosaur Cartoon Ever

Mountain of Dinosaurs, from 1967, uses extinction as a metaphor for Soviet oppression


The Fall of Domino Dinosaurs

A delicately-balanced domino setup replays the end of the Age of Dinosaurs

Disease has often been blamed for the extinction of the last dinosaurs, such as this Edmontosaurus at the Natural History Museum of Los Angeles.

Disease and the Demise of the Dinosaurs

Cataracts, slipped discs, epidemics, glandular problems and even a loss of sex drive have all been proposed as the reason non-avian dinosaurs perished

Scientists are racing against time: 100,000 species of flora-imperiled by habitat destruction, overharvesting and climate change—are threatened with extinction.

The Noah's Ark of Plants and Flowers

Scientists at a British laboratory are racing to preserve thousands of the world’s threatened plants, one seed at a time


Ten Extremely Rare Seeds on the Brink of Extinction

The Millennium Seed Bank has set out to collect 25 percent of the world's plant species by 2020—before it is too late

Small coelurosaurs like this Troodon appear to have maintained stable levels of disparity during the last 12 million years of the Cretaceous.

New Wrinkle to the Story of the Last Dinosaurs

Were the last dinosaurs thriving or declining just before Tyrannosaurus and kin disappeared?

The shape of the "Pachysuchus" fossil (in grey) set into a sauropodomorph dinosaur skull

Pachysuchus Actually a Hidden Dinosaur

A strange jaw fragment, once thought to belong to a crocodile-like predator, turned out to be a dinosaur

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