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Fatherhood changes men's brains, according to before-and-after MRI scans

The time fathers devote to child care every week has tripled over the past 50 years in the United States. The increase in fathers’ involvement in child rearing is even steeper in countries that have expanded paid paternity leave or created incentives for fathers to take leave, such as Germany, Spain, Sweden and Iceland. And a growing body ...Read more

Beware of 'Shark Week': Scientists watched 202 episodes and found them filled with junk science, misinformation and white male 'experts' named Mike

The Discovery Channel’s annual Shark Week is the longest-running cable television series in history, filling screens with sharky content every summer since 1988. It causes one of the largest temporary increases in U.S. viewers’ attention to any science or conservation topic.

It’s also the largest stage in marine biology, giving ...Read more

Pregnancy is a genetic battlefield – how conflicts of interest pit mom's and dad's genes against each other

Baby showers. Babymoons. Baby-arrival parties. There are many opportunities to celebrate the 40-week transition to parenthood. Often, these celebrations implicitly assume that pregnancy is cooperative and mutually beneficial to both the parent and the fetus. But this belief obscures a more interesting truth about pregnancy – the mother and ...Read more

Where Mauna Loa's lava comes from – and why Hawaii's volcanoes are different from most

Hawaii’s Mauna Loa, the world’s largest active volcano, began sending up fountains of glowing rock and spilling lava from fissures as its first eruption in nearly four decades began on Nov. 27, 2022.

Where does all that lava come from?

We asked Gabi Laske, a geophysicist at the University of California-San Diego who led ...Read more

Ancient DNA from the teeth of 14th-century Ashkenazi Jews in Germany already included genetic variations common in modern Jews

About two-thirds of Jews today – or about 10 million people – are Ashkenazi, referring to a recent origin from Eastern and Central Europe. They reside mostly in the United States and Israel. Ashkenazi Jews carry a particularly high burden of disease-causing genetic mutations, such as those in the BRCA1 gene associated with an increased ...Read more

Al Seib/Los Angeles Times/TNS

Green factories are changing minds in more conservative US states

At least $25.7 billion in new US clean-energy factories are in the works, thanks in part to the generous subsidies in President Joe Biden’s landmark climate law. Most of these projects — and the jobs that come with them — are in traditionally conservative states.

In Dalton, Georgia, green energy hasn’t been a priority. Its Congressional...Read more

GLENN CHAPMAN/AFP/Getty Images North America/TNS

Layoffs mount: Twitter, tech, biotech firms chop 900-plus Bay Area jobs

SAN JOSE, California — Twitter and other companies have unveiled plans to chop more than 900 Bay Area jobs in a fresh round of tech and biotech layoffs that could jolt the region’s increasingly wobbly economy.

In recent days, plans for 913 tech and biotech job cuts — including hundreds more at Twitter — have been revealed in official ...Read more

Ruko/Ruko/TNS

Tech review: Ruko drone is easy to fly and makes beautiful videos

I’m a huge fan of helicopters.

If there’s a helicopter flying where I can see it, I usually stop and watch it.

As a kid, one of my favorite Christmas presents was called the Vertibird, which was a toy helicopter with a real set of blades that turned. The chopper was attached with a long cable to a base with a motor. The Vertibird flew in a...Read more

Douglas R. Clifford/Tampa Bay Times/TNS

Bird flu has killed thousands of Florida's wild birds this year. Is it here to stay?

TAMPA, Fla. — It was the morning of Jan. 22 when the fears of Florida wildlife biologists became reality.

Reports of a highly infectious new bird flu strain had been confirmed a month prior in Canada, the launching pad for several migratory bird species that make their way to Florida. Biologists had been watching with anxious anticipation as ...Read more

Even weak tropical cyclones have grown more intense worldwide – we tracked 30 years of them using currents

Tropical cyclones have been growing stronger worldwide over the past 30 years, and not just the big ones that you hear about. Our new research finds that weak tropical cyclones have gotten at least 15% more intense in ocean basins where they occur around the world.

That means storms that might have caused minimal damage a few decades ...Read more

Luis Sinco/Los Angeles Times/TNS

US government pledges $250 million to help ailing Salton Sea

LOS ANGELES — The Biden administration has announced a plan to provide $250 million to accelerate environmental projects around the shrinking Salton Sea, helping to revitalize its ecosystems and control hazardous dust in a deal that will clear the way for California to take less water from the drought-ravaged Colorado River.

Leaders of the ...Read more

Is China ready to lead on protecting nature? At the upcoming UN biodiversity conference, it will preside and set the tone

As the world parses what was achieved at the U.N. climate change conference in Egypt, negotiators are convening in Montreal to set goals for curbing Earth’s other crisis: loss of living species.

Starting on Dec. 7, 2022, 196 nations that have ratified the U.N. Convention on Biological Diversity will hold their 15th Conference of the...Read more

Graphene is a proven supermaterial, but manufacturing the versatile form of carbon at usable scales remains a challenge

“Future chips may be 10 times faster, all thanks to graphene”; “Graphene may be used in COVID-19 detection”; and “Graphene allows batteries to charge 5x faster” – those are just a handful of recent dramatic headlines lauding the possibilities of graphene. Graphene is an incredibly light, strong and durable material made of a ...Read more

Drew Martin/The Island Packet/TNS

Old shrimp boat is sunk off Hilton Head Island. It's now being put to good use

A 70-foot shrimp boat — once docked in the town of Port Royal — has joined New York City subway cars and other unusual materials that make up a man-made reef off of South Carolina’s Hilton Head Island, where black sea bass, grouper and barracuda and other fish hang out.

On Oct. 25, the Palmetto Pride, a shrimp boat with Beaufort-based Sea...Read more

Peter Adams/Dreamstime/Dreamstime/TNS

Great Barrier Reef should be on UN's list of endangered World Heritage sites, report says

CANBERRA, Australia — Australia’s iconic Great Barrier Reef is once again at risk of being categorized as endangered, after the United Nations reported ongoing threats to the natural wonder including pollution and climate-fueled bleaching.

A monitoring mission sent to Queensland in March to study the dangers to the Great Barrier Reef found ...Read more

Chris Ross of Ocearch/TNS/TNS

White sharks once again migrate into Florida's waters, probably eating other sharks

FORT LAUDERDALE, Fla. — It’s that time of year again: White sharks, just like snowbirds, have started heading south for the weather. They’re turning toward Florida’s waters after spending the summer off Cape Cod and Nova Scotia, hunting seals and tuna.

Several sharks have begun pinging off South Florida, as part of a tagging study by ...Read more

NASA/NASA/TNS

Halfway done: Orion reaches farthest distance from Earth on Artemis I mission

ORLANDO, Fla. — NASA officials said the Orion spacecraft traveled to its farthest distance from Earth on Monday, two days after breaking a record set by Apollo 13.

On Saturday, Orion, which launched atop the Space Launch System rocket from Kennedy Space Center on Nov. 16, surpassed the previous record of 248,655 miles from the planet, which ...Read more

The first mass extinction event was from a lack of oxygen, researchers find

Scientists have speculated for years that the world is coming up on its sixth mass extinction, when a majority of the Earth’s creatures become extinct. But a couple of Virginia Tech researchers are studying what happened in the first extinction in hopes of avoiding another.

A new study led by Scott Evans, a postdoctoral researcher, and co-...Read more

NASA/NASA/TNS

Orion nears farthest distance from Earth on Artemis I mission

ORLANDO, Fla. — NASA officials said the Orion spacecraft is approaching its farthest distance from Earth on Monday, two days after breaking a record set by Apollo 13.

On Saturday, Orion, which launched atop the Space Launch System rocket from Kennedy Space Center on Nov. 16, surpassed the previous record of 248,655 miles from the planet, ...Read more

We're decoding ancient hurricanes' traces on the sea floor – and evidence from millennia of Atlantic storms is not good news for the coast

If you look back at the history of Atlantic hurricanes since the late 1800s, it might seem hurricane frequency is on the rise.

The year 2020 had the most tropical cyclones in the Atlantic, with 31, and 2021 had the third-highest, after 2005. The past decade saw five of the six most destructive Atlantic hurricanes in modern history....Read more