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Grieving Orca Carries Dead Calf for More Than 3 Days: ‘She’s Just Not Letting Go’

Grieving Orca Carries Dead Calf for More Than 3 Days: ‘She’s Just Not Letting Go’

An orca whale has carried her dead calf on her nose for days in the Pacific Northwest.

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

A sauropod footprint found in Scotland was among several that included tracks left by smaller, two-legged meat-eaters. Their presence together upends a theory that the larger plant-eaters waded into shallow, muddy waters to evade predators.

Starfish See Pretty Well in the Deep Ocean. By the Way, Starfish Have Eyes.

Starfish See Pretty Well in the Deep Ocean. By the Way, Starfish Have Eyes.

The Tremaster mirabilis starfish, one of several species of sea star living in deep waters off Greenland’s coast that have surprisingly complex eyes.

Emperor Penguins: Good Dads, but Less Dedicated Than You May Have Thought

Emperor Penguins: Good Dads, but Less Dedicated Than You May Have Thought

Adult emperor penguins and their chicks near a research station in Terre Adélie, Antarctica. Researchers found that male penguins from one colony often slipped out to hunt during breeding season.

Orcas of the Pacific Northwest Are Starving and Disappearing

Orcas of the Pacific Northwest Are Starving and Disappearing

Orcas from pod J in Puget Sound just west of Seattle. The number of orcas in the area, listed as endangered since 2005, has dwindled to a 30-year low.

NASA Names Astronauts for Boeing and SpaceX Flights to International Space Station

NASA Names Astronauts for Boeing and SpaceX Flights to International Space Station

The astronauts named by NASA to fly on commercial spacecraft made by Boeing and SpaceX to and from the International Space Station: From left, Sunita Williams, Cmdr. Josh Cassada, Eric Boe, Lt. Col. Nicole Mann, Christopher Ferguson, Douglas Hurley, Col. Bob Behnken, Col. Mike Hopkins and Cmdr. Victor Glover.

Clown Fish Need More Energy to Live in a Bleached Home

Clown Fish Need More Energy to Live in a Bleached Home

Researchers at the University of Glasgow studied physiological indicators of stress in clown fish living with bleached anemones, a result of warming temperatures and other environmental disturbances.

Japan’s Hayabusa2 Spacecraft Creeps Up on the Ryugu Asteroid

Japan’s Hayabusa2 Spacecraft Creeps Up on the Ryugu Asteroid

A view of the asteroid Ryugu captured by the Hayabusa2 spacecraft on Sunday, from a distance of about 40 kilometers.

Plan Bee: The Rise of Alternative Pollinators

Plan Bee: The Rise of Alternative Pollinators

Alfalfa leafcutter bees and their brood cells in a hut built by Jim Watts, who runs a business providing bees to farmers out of Ontario, Ore.

Hundreds of Reindeer Died by Lightning. Their Carcasses Became a Laboratory.

Hundreds of Reindeer Died by Lightning. Their Carcasses Became a Laboratory.

The carcasses of 300 reindeer on a plateau in Norway may help engender new plant diversity, according to scientists.

How Do You Count Endangered Species? Look to the Stars

How Do You Count Endangered Species? Look to the Stars

A thermal image of elephants, part of an effort to apply tools from astronomy to help conservationists and fight poaching.

Designing the Death of a Plastic

Designing the Death of a Plastic

A piece of plastic polymer about to be destroyed under ultraviolet light.

Insects Flew Before Anything Else Did. So How Did They Get Their Wings?

Insects Flew Before Anything Else Did. So How Did They Get Their Wings?

A fossil of a cockroach dating to the Cretaceous period, about 145 to 65 million years ago. Insects took to the skies much earlier, but there is scant fossil evidence from the period showing how they evolved wings.

To Beat Go Champion, Google’s Program Needed a Human Army

To Beat Go Champion, Google’s Program Needed a Human Army

Lee Se-dol, a professional Go player from South Korea, was smiling amid other players despite losing four of five games against a Google computer program called AlphaGo.

With 86% Drop, California’s Monarch Butterfly Population Hits Record Low

With 86% Drop, California’s Monarch Butterfly Population Hits Record Low

The population of western monarch butterflies in California dropped to a record low last year, according to a nonprofit conservation group.

Australia’s Endangered Quolls Get Genetic Boost From Scientists

Australia’s Endangered Quolls Get Genetic Boost From Scientists

A northern quoll bred at a wildlife park in 2016. Scientists hope breeding programs can help quolls inherit life-saving genes.


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