L.A. says goodbye to P-22, its mountain lion turned celebrity crush

“People always said he looked like Brad Pitt. And yeah, he looked like Brad, but he walked like Denzel ... that slow, real relaxed, sexy walk,” a neighbor said.

By Reis ThebaultFebruary 4, 2023

Leonardo DiCaprio names snail-eating snake after his mom

It's an attempt by the actor to raise awareness about the threats that mining presents to biodiversity in Central and South America.

By Erin BlakemoreFebruary 4, 2023

Bobi is world’s oldest dog. Yours can live a long, happy life, too.

Maintaining a healthy weight is crucial for dogs to live long lives, experts told The Washington Post.

By Andrea SalcedoFebruary 3, 2023

Essential insects in East Asia have declined massively, study finds

Insects that play a key role in East Asia's ecosystems declined sharply over the past two decades, according to new research — a trend also seen elsewhere.

By Meaghan TobinFebruary 3, 2023

How will ‘couch potato’ humans evolve? Idle cavefish offer clues.

Thousands of years after floods washed a species of fish into dark Mexican caves, genetic changes reset their metabolism to suit their new sedentary lifestyle.

By Mark JohnsonFebruary 2, 2023

Long-term exposure to pollution linked to depression, study finds

An 11-year study in the United Kingdom suggests that long-term exposure to even low levels of pollution is linked to anxiety and other mental health issues.

By Kelly Kasulis ChoFebruary 2, 2023

Surprising mummy ingredients found at ancient Egyptian workshop

Scientists are unraveling the secrets of mummification – including the intriguing discovery that the practice may have been dependent on a global supply chain.

By Carolyn Y. JohnsonFebruary 1, 2023

Mysterious flying spiral spotted in Hawaii night sky

A mesmerizing blue “flying spiral” was captured Jan. 18 by a National Astronomical Observatory of Japan camera at the summit of Mauna Kea in Hawaii.

January 31, 2023

Yale honors Black girl who was reported to police as she sprayed lanternflies

Bobbi Wilson, 9, drew national attention when a neighbor called police on her while she was spraying spotted lanternflies in her New Jersey neighborhood.

By Timothy BellaJanuary 31, 2023

A bear’s face on Mars? NASA captures unusual features on planet’s surface.

NASA’s Mars reconnaissance orbiter camera captured an unusual formation that looked like the shape of a bear’s face.

By Jennifer HassanJanuary 31, 2023

Brazilians and dolphins work together to catch fish. Maybe not for long.

Local fishers and bottlenose dolphins have long worked together to catch mullets, a silvery fish. But climate change and commercial fishing may end the practice.

By Andrew JeongJanuary 31, 2023

People cast nets alongside bottlenose dolphins

Video shows bottlenose dolphins herding mullet fish toward the coast and performing a behavioral cue in front of net-casting fishers in Laguna, Brazil.

January 31, 2023

‘Mysterious flying spiral’ appears in night sky over Hawaii

A mesmerizing blue “flying spiral” was captured Jan. 18 by a National Astronomical Observatory of Japan camera at the summit of Mauna Kea in Hawaii.

January 31, 2023

Zero-emission steel won’t happen without trade-offs, scientists say

In a paper, materials sustainability experts write that while zero-emission steel is within reach, it may require producing less steel overall.

By Erin BlakemoreJanuary 28, 2023

Skywatch: A comet visits, and Venus and Jupiter show a Valentine spirit

A description of planetary activity in February.

By Blaine P. Friedlander Jr.January 27, 2023

Scientists invented a melting liquid robot that can escape from a cage

Its inventors hope the tiny metal robot, which is being compared to the Terminator, could be used in medical operations or for fixing electronics.

By Leo SandsJanuary 26, 2023

A 19-foot asteroid will come ‘very close’ to Earth tonight, NASA says

The truck-sized asteroid will pass Earth on Jan. 26, in what NASA says will be one of the closest approaches by a near-Earth object on record.

By Jennifer HassanJanuary 26, 2023

A turkey settled near her Minnesota home. Now she carries weapons.

In Coon Rapids, Minn., Rachael Gross said a wild turkey has placed her and her neighbors’ lives in turmoil.

By Kyle MelnickJanuary 26, 2023

An ant’s sense of smell is so strong, it can sniff out cancer

A new study on the insects' refined sense of smell points to the potential of someday using sharp-nosed ants and other animals to detect tumors quickly and cheaply.

By Dino GrandoniJanuary 24, 2023

J. Richard Steadman, orthopedic guru for elite athletes, dies at 85

Dr. Steadman introduced surgical innovations including harnessing the body's stem cells to stimulate growth of new cartilage in injured knees.

By Brian MurphyJanuary 24, 2023