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Ecology

Researchers spent six years observing interactions between bull sharks at Fiji's Shark Reef Marine Reserve.

Bull Sharks Are Large, Aggressive Predators—but They Also Know How to Make ‘Friends,’ New Research Suggests

The animals probably socialize to learn new skills and to find food and mates

Like Astrophage, the solar-radiation-eating microbes in Andy Weir’s novel Project Hail Mary, some sea slugs can derive energy from sunlight.

These Sea Slugs Can ‘Eat’ Sunlight—but They’re No Astrophage. Here’s How the ‘Project Hail Mary’ Antagonist Has a Real-Life Analogue in Earth’s Oceans

By snatching chloroplasts from algae, animals called sacoglossans produce their own energy through photosynthesis

Scientists tracked the breeding behaviors of king penguins on Possession Island, part of the French-controlled Crozet archipelago.

King Penguins Seem to Be Benefiting From a Warming World. While That’s Good News for Now, It Could Spell Trouble for the Future

The birds are breeding earlier, and more of their chicks are surviving. But researchers fear this success may not last

The fire-loving fungus Geopyxis, seen here in 2022, after California’s Caldor Fire, has distinctive brown cups with white rims.

These Charcoal-Eating Fungi Flourish After Fires. Uncovering Their Genetic Secrets Could Help Rebuild Burned Ecosystems

Mycologists cultivated fungi they found in post-wildfire landscapes to understand the evolutionary traits behind their ability to thrive in the wake of flames

Common eastern bumblebee queens use underwater breathing and anaerobic metabolism to survive when submerged.

Bumblebee Queens Breathe Underwater to Survive Drowning, Revealing How They Can Live Submerged for a Week

After scientists accidentally discovered that the common eastern bumblebee can withstand flood conditions, they wanted to investigate what makes that super-ability possible

Researchers collected chimp urine from leaves and puddles on the forest floor in Uganda.

Wild Chimpanzees Love to Eat Boozy Fruit. Scientists Say the Proof Is in Their Pee

The work further hints that humans may have inherited our penchant for alcohol from our ape ancestors

Female caribou grow antlers, which they shed just a few days before giving birth.

Caribou Are the Only Deer Species in Which Females Grow Antlers. Scientists Just Figured Out Why

New research suggests female reindeer antlers serve as postpartum snacks, with new moms munching on them after giving birth to get a much-needed boost of protein, calcium and phosphorus

The Ennedi Natural and Cultural Reserve, in eastern Chad, encompasses 19,300 square miles of a vast sandstone plateau.

The Sahara Desert Hasn’t Always Been a Dry, Desolate Landscape. Some Scientists See Signs It May Be Greening Again

Petroglyphs on sandstone at a national park in Chad bear witness to wildlife that once roamed the area before the continent’s water largely receded 6,000 years ago. Could it return?

European robins normally live in western Eurasia and parts of North Africa, but this one somehow ended up in Canada.

Bird-Watchers Flock to Montreal to Catch a Glimpse of Canada’s First Known European Robin

Experts don’t know how the little songbird traveled across the Atlantic Ocean

A gray wolf in California.

A Gray Wolf Visited Los Angeles County for the First Time in a Century, Marking a Major Milestone in the Species’ Recovery

The 3-year-old female wolf, called BEY03F, is probably looking for a mate

Larvae of the European black oil beetle, which are orange, ride bees to their nests and then chow down on bee eggs.

These Parasitic Beetles Mimic the Smell of Flowers So They Can Trick Bees and Raid Their Nests, New Research Suggests

They might be the first animals known to fake a floral scent

Scientists found that fringe-lipped bats have a roughly 50 percent success rate when trying to capture prey.

These Lazy Bats Are Super-Efficient Killers That Carefully Conserve Energy to Attack at a Moment’s Notice

Wild fringe-lipped bats spend just one-tenth of the night in flight, but they can precisely snatch a calling frog and nab prey that rivals their own size

Stoats, also often known as ermines, are carnivorous mammals in the weasel family. Two stoats are the mascots of the 2026 Winter Olympics in Italy.

What Is a Stoat? Learn Five Fun Facts About the Adorable Weasels Chosen as the Olympic Mascots

Milo and Tina, a pair of sibling stoats, are representing this year’s winter games in Italy

A small underwater lens made a coral in Indonesia look like another common lifeform.

See the Beauty of Corals, Beehives, Mushrooms and More in These 11 Images From the Close-Up Photographer of the Year Awards

Now in its seventh year, the competition honors macro, micro and close-up images snapped around the world

After exposing an ant to the air pollutant ozone, its nestmates acted aggressively toward it.

Air Pollution Can Cause Some Ants to Turn on One Another—and Neglect Their Young, New Research Suggests

The findings further hint that air pollution, particularly ozone, is contributing to the “insect apocalypse”

Sceptobius beetles groom ants to steal the pheromones that they produce. The beetles cloak themselves in those pheromones to match the scent of the ant colony, gaining the ability to live among the ants undetected.

These Beetles Are Entirely Dependent on Ants for Survival. Here’s Why That’s Not an Evolutionary Death Sentence

Rove beetles cloak themselves in ant pheromones to sneak into the insects’ nests for protection. But in an odd catch-22, that makes them forever reliant on their hosts

Common vampire bat

When Vampire Bats Become Close Friends, They Start ‘Talking’ Like Each Other

New research shows that just like humans, vampire bats with deep social relationships use similar sounds as one another to communicate

After capturing the 77-pound male, wildlife officials said they planned to re-collar and release the creature into the wild.

Rare Mountain Lion Standoff in San Francisco Ends Peacefully After a 30-Hour Search

Wildlife officials successfully captured the young male, known as 157M, after he wandered into the northern Pacific Heights neighborhood

A Brazilian keelback (Helicops infrataeniatus) cannibalizes another in 2015.

Cannibalism Among Snakes Is Far More Widespread Than Previously Thought

Scientists undertook the first comprehensive assessment of how often snakes eat their own, uncovering reports of the behavior in more than 200 species

Outbreaks of crown-of-thorns starfish have threatened the Great Barrier Reef since the 1960s.

These Hungry Starfish Are Spiraling Out of Control in Australia. Now Scientists Say They Have a New Plan to Fight Back

Synthetic pheromones may be a promising tool in attracting and culling troublesome crown-of-thorns starfish, which rapidly eat large amounts of coral on the Great Barrier Reef

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