This fragment of a terror bird’s left tibiotarsus, a lower leg bone in birds equivalent to that of a human tibia or shin bone, dates to around 12 million years ago during the Miocene epoch.

Rare 'Terror Bird' Fossil Found in Colombia Reveals the Enormous Size of a Prehistoric Predator

The bone, described two decades after its discovery, suggests the species might have grown up to 20 percent bigger than other terror birds

The researchers studied the dusky lory (pictured) and the rosy-faced lovebird.

A Simple Chemical Shift Explains Why Parrots Are So Colorful, Study Suggests

Unlike other birds, which get pigments from their diets, parrots produce their own—but scientists never fully understood the underlying mechanisms, until now

Artist Ron Louque designed the 2002 federal duck stamp with this portrait of two snow geese soaring through the air.

The 'Super Bowl of Wildlife Art' Is All About Ducks, and It Has Protected America's Wetlands for 90 Years

Introduced in 1934, the federal duck stamp contest has raised more than $1.2 billion and protected at least 6.5 million acres across the nation. Now, an art exhibition at Connecticut’s Bruce Museum honors the competition’s history

Tourists watch leatherback sea turtle hatchlings crawl toward the sea under the glow of less intrusive red lights. Artificial white lighting can attract the hatchlings away from the ocean, where predators may be lurking.

From Prolonging Wallaby Pregnancies to Disorienting Hatchling Turtles, 11 Ways Artificial Lights Affect Animals

From the busy cities to ocean waters, our need to illuminate the world has had some strange and tragic consequences

Jonathan Shapiro, a Vermont-based wilderness instructor and certified “specialist” tracker on the East Coast, during an evaluation in the California desert.

Even as A.I. Technology Races Ahead, the Prehistoric Science of Wildlife Tracking Is Making a Comeback

Humans perfected how to identify wild animals over millennia, and now biologists are rediscovering the exceptional worth of the tracks and marks left behind

After female penguins lay eggs, parents take turns warming the nest during the roughly 43-day incubation period.

How Scientists’ Tender Loving Care Could Save This Endangered Penguin Species

From fish smoothies to oral antibiotics, researchers are taking matters into their own hands in a radical effort to save New Zealand’s yellow-eyed penguins

Two lynx shelter from the wind behind their parent, who looks into the camera.

See 15 Winning Images From the Wildlife Photographer of the Year Contest

Breathtaking shots shine a light on the wonders of wildlife and the threats that human activities pose to the natural world

In the 1980s, there were only 22 surviving California condors. Now, after careful conservation measures, there are over 300 in the wild and 200 in captivity. (The above bird is not Milagra.)

Meet Milagra, a Rare Condor Rescued as an Egg and Newly Released Back Into the Wild

Milagra, Spanish for “miracle,” was hatched and raised in captivity by foster condor parents after her mother died of avian flu in April 2023

A green-crowned brilliant hummingbird feeds on a cactus flower in Costa Rica. 

Uncovering the Secrets Behind Hummingbirds' Extreme Lifestyle

Here's how the aerial acrobats are able to survive on a nearly all-sugar diet, fly higher than many helicopters can and migrate over the open ocean

A wildfire burns in Quebec, Canada, in June of last year. Smoke from the fires drifted south to the United States.

Is Wildfire Smoke Causing Birds to Tend to Empty Nests?

New studies suggest smoke from western megafires may be damaging bird health and leading to strange behavior