
Tubby Labradors May Be at the Mercy of Their Genes, Not Just Too Many Treats
One in four Labrador retrievers carries a gene that tricks their brain into thinking they’re starving
Meghan Bartels is a science journalist based in New York City. She joined Scientific American in 2023 and is now a senior reporter there. Previously, she spent more than four years as a writer and editor at Space.com, as well as nearly a year as a science reporter at Newsweek, where she focused on space and Earth science. Her writing has also appeared in Audubon, Nautilus, Astronomy and Smithsonian, among other publications. She attended Georgetown University and earned a master’s degree in journalism at New York University’s Science, Health and Environmental Reporting Program.

Tubby Labradors May Be at the Mercy of Their Genes, Not Just Too Many Treats
One in four Labrador retrievers carries a gene that tricks their brain into thinking they’re starving

What Do Dogs and Cats Dream About?
Pets can’t report their dreams, but scientists have some evidence about what is happening when Sparky and Mittens sleep

Who Gets an Abortion in the U.S.? Perceptions Don’t Match Reality
People’s perceptions about who gets an abortion and why rely on stereotypes and misconceptions—with potential policy implications

Stunning Comet Could Photobomb This April’s Total Solar Eclipse
Comet 12P/Pons-Brooks will make its closest approach to the sun this April—right after North America is treated to a total solar eclipse

Sculptures about to Land on the Moon Join a Long History of Lunar Art
A lunar lander nicknamed Odie carries 125 small moon sculptures by artist Jeff Koons that could become the first authorized artwork on the moon

How Risky Are Repeat COVID Infections? What We Know So Far
Four years into the pandemic, many people have had COVID more than once—but the health consequences of repeat infections are not yet clear

Antarctica’s Penguins Could Be Devastated by Avian Influenza
Scientists are watching closely to see whether avian influenza will reach Antarctica before this year’s penguin chicks disperse for the season

Rampant COVID Poses New Challenges in the Fifth Year of the Pandemic
“We’re still in a pandemic,” says a lead COVID official with the World Health Organization

Jupiter’s Supervolcanic Moon Io Dazzles in Photos from NASA’s Close Flybys
During close flybys of Jupiter’s volcanic moon Io, NASA’s Juno spacecraft captured stunning “bonus science” about the nightmarish world

NASA’s Mars Helicopter Ingenuity Ends Mission on the Red Planet after 3 Years
NASA’s enterprising Mars helicopter and its remarkable 72 flights offered a new vision of planetary exploration

Lions Are Changing Their Hunting Strategy because of Ant Invasion
Big-headed ants are invading new territories in Kenya—and the consequences are rippling through the whole ecosystem, scientists have found

Robotic Dinosaur Tests How Dinos (and Birds) Got Wings
Scientists built a robotic dinosaur to terrify grasshoppers, all in hopes of understanding how truly pathetic wings could offer prehistoric animals an evolutionary advantage

Why 2024’s Total Solar Eclipse Will Be So Special
The last time North Americans caught a total solar eclipse, the sun was in a lull of activity. This year’s eclipse will be very different

Cute Little Tardigrades Are Basically Indestructible, and Scientists Just Figured Out One Reason Why
Tardigrades are microscopic animals that can survive a host of conditions that are too extreme to ever occur on Earth—and scientists want to learn their secrets

Why Does Salting Roads Make Them Safer?
How salt makes roads safer in winter—and why new methods could be better for the environment

What’s Behind the ‘Arctic Blast’ Plunging into the U.S.?
This week’s cold snap across the U.S. will be one of “the most impressive Arctic outbreaks of this century,” one climate scientist says

Enigmatic Dinosaur Skull Sparks Debate over Tyrannosaur Evolution
A dinosaur skull first discovered in the 1980s was originally catalogued as a T. rex. Now some scientists argue it represents a new species of tyrannosaur and could shed light on where the massive animals originated

What Killed the Largest Known Ape Species Ever?
The massive ancient ape Gigantopithecus blacki disappeared in a mystery that scientists are eager to crack

Human Remains Are Headed to the Moon despite Objections
The Navajo Nation has called for a delay in launching the commercial lander Peregrine, which is set to carry human remains on a private mission to the moon

Reindeer Chew Their Food While Napping
Brain wave studies suggest that when it comes to eating and sleeping, reindeer multitask to survive in the harsh Arctic

Antarctic Octopus Holds Secrets of Prehistoric Ice Loss in Its Genome
As the climate crisis continues, sooner or later the massive West Antarctic Ice Sheet will collapse. An unassuming octopus just gave scientists an important clue about how quickly that might happen

How to Avoid Holiday Hangovers, According to Science
Scientific American asked experts about the factors that shape how drunk someone gets during a night out and how bad a hangover they might have the next morning

Lost ‘Woolly Dog’ Genetics Highlight Indigenous Science
“Woolly dogs” that were kept by the Coast Salish peoples are now extinct, but researchers were able to see their importance written in the genome of the only known pelt

Green Glow of ‘Mesospheric Ghosts’ Decoded
Mysterious green displays in the sky dubbed “mesospheric ghosts” can sometimes accompany the dramatic red atmospheric lights called sprites