PopulationConservation, overpopulation and extinct and endangered species
If the non-avian dinosaurs hadn't died out 65 million years ago, what would they look like today?
January 12, 2012 | By Brian Switek
"Going the way of the dinosaur" is a popular phrase, but one drawn from bizarre 20th century ideas that dinosaurs were due for an extinction
January 11, 2012 | By Brian Switek
After all but disappearing, the mammals are again being sighted in Washington's Cascade Range
January 2012 | By Eric Wagner
Scientists have discovered that the massive mammal uses elaborate buzzes, clicks and squeaks that spell doom for the animal's prey
December 2011 | By Eric Wagner
Smithsonian researchers join an international effort to bring the five-foot-tall bird back from the brink of extinction
November 2011 | By Megan Gambino
Dinosaurs have long been rumored to still survive in the Congo Basin, but is there any truth to the tall tales?
October 28, 2011 | By Brian Switek
High in the Himalayas, the Tibetan bunting is getting help from a very special friend
October 2011 | By Phil McKenna
A bold plan for wildlife corridors that connect populations from Mexico to Argentina could mean the big cat's salvation
October 2011 | By Sharon Guynup
Marine biologist Mary Hagedorn has learned to freeze and reanimate coral cells
September 15, 2011 | By Megan Gambino
Could the California sea otters' peculiar dietary habits be impeding their resurgence?
September 2011 | By Jess Righthand
What if the cataclysmic asteroid that forever changed life on Earth actually missed the planet and giant dinosaurs never went extinct?
August 25, 2011 | By Brian Switek
Biologists scale city trees to bag a surprisingly urban species, the Cooper's Hawk
August 23, 2011 | By Eric Wagner
Can scientists stop white-nose syndrome, a new disease that is killing bats in catastrophic numbers?
August 2011 | By Michelle Nijhuis
Garlic mustard and Asian carp can wreak havoc on their ecosystems, but do they have a future on your dinner plate?
May 25, 2011 | By Kristin Ohlson
Snails, marmots, condors and coral reef are among the many species on the continent that are close to extinction
May 19, 2011 | By Megan Gambino, Erin Wayman and Sarah Zielinski
When the American Museum of Natural History's paleontologist William Diller Matthew published his book Dinosaurs in 1915, no one understood how the famous Mesozoic creatures originated or went extinct. Both the beginning and end of the "Age of Dinosaurs" were mysterious. Yet, tucked away in a foot...
April 22, 2011 | By Brian Switek
The Smithsonian's noted bird sleuth, Carla Dove, eyes smelly globs to identify victims in Florida
April 2011 | By Arcynta Ali Childs
Rare cranes have flourished in the world's unlikeliest sanctuary, the heavily mined demilitarized zone between North and South Korea
April 2011 | By Eric Wagner
Biologist George Schaller on the debate over ANWR conservation and why the refuge must be saved
March 10, 2011 | By Molly Loomis
A 150-mile fence in the Kalahari Desert appeared to threaten Africa's zebras, but now researchers can breathe a sigh of relief
March 2011 | By Robyn Keene-Young