The Pope Leads 1.4 Billion Catholics. Getting Them to Care About the Climate Is Harder Than He Thought

Pope Francis is among the most significant religious leaders in the world. But even he can’t bend the emissions curve on his own.

Only 1,280 Reproductive Human Ancestors Once Roamed Earth, Gene Study Suggests

An ancestral human species faced a startling population bottleneck and teetered on the brink of extinction around 800,000 years ago, according to new research.

NBCUniversal Gets Weak Fine for Mid-Strike Tree Pruning

Despite the enthusiastic utterances of "tree law" across Twitter, there was no justice of any sort with LA's fine to Universal.

California Officials Vote to Protect the Iconic Joshua Trees

Officials have voted yes on a bill that prohibits the unauthorized removal or killing of the endangered desert plant.

7 ‘Extinct’ Species That Eventually Reappeared

These so-called Lazarus species often evade our notice.

Spring Has Sprung Way Early in Parts of the U.S.

After an unusually warm and snowless winter, plants are sprouting earlier than usual across many states.

Prey’s Dan Trachtenberg Goes Into the Making of Its New Old Predator

The next entry in the sci-fi horror franchise hits Hulu next week.

Can You Spot the Predator in Prey’s Newest Trailer?

Set in the Comanche Nation, the Predator franchise squares up against the warriors of the First Nations.

The First Teaser for Prey Puts the Predator’s Sights on the Past

Our first look at Dan Trachtenberg’s new entry in the Predator saga takes us back in time.

Which Animal Species Get Along the Best?

"It is clear that some animals become familiar and get along with group members that happen to be other species, but do they become friends?"

Award-Winning Ecology Photos Remind Us That Nature Is Awesome—and Complicated

Winning images from this year’s Capturing Ecology contest include a spider with a taste for bumblebees and a gull with a lice problem.

U.S. Declares Ivory-Billed Woodpecker, 22 Other Species Extinct

'Extinction is not inevitable. It is a political choice. ... As a country we need to stand up and say we aren’t going to lose any more species to extinction.'

The Scientist Using Fire to Save Orchids From Extinction

The Mid-Atlantic is the unlikely to home to one of the most innovative orchid conservation programs in the country.

Will We Ever Be Able to ‘Talk’ With Our Pets?

Humans Have Destroyed 97% Of Earth’s Ecosystems

Saudi Crown Prince Asks, Answers What if a City, But It’s a 105-Mile Line

Shipwreck Filled With Treasure and Elephant Tusks Sheds Light on 16th-Century Ivory Trade

The ‘Insect Apocalypse’ Might Not be as Hopeless as We Thought

Whale Sharks’ Long Lifespan Revealed by Atomic Bomb Remnants

Scientists Find Evidence of Deep-Sea Fish Migration Route