The oldest genetic link between Asians and Native Americans was found in Siberia

DNA gleaned from a roughly 14,000-year-old fragment of a human tooth suggests that people inhabiting a surprisingly large swath of Asia were the ancestors of the first...

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A tweaked yeast can make ethanol from cornstalks and a harvest’s other leftovers

When corn farmers harvest their crop, they often leave the stalks, leaves and spent cobs to rot in the fields. Now, engineers...

Squirrels use parkour tricks when leaping from branch to branch

Parkour enthusiasts need look no further than up in the trees for inspiration. Squirrels’ aerial acrobatics make the rodents masters of the...

Moral judgments about an activity’s COVID-19 risk can lead people astray

What do you think was riskier during the pre-vaccine days of the pandemic: having your lonely parents over for dinner or going...

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Presenting at an academic conference

You must also be well-prepared in terms of public speaking factors such as observing time limits, having a strict structure, making eye...

Nanoscale nutrients can protect plants from fungal diseases

Chances are, most — if not all — of the produce in your kitchen is threatened by fungal diseases. The threat looms...

Death has become a big business.Elaborate coffins illuminate hidden history of ancient Egypt

Last week, Egypt’s Supreme Council of Antiquities announced a spectacular find. More than 100 elaborately decorated wooden coffins, many containing intact human...
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Heavy metal may rain from the skies of planet WASP 76b

On one distant world, “heavy metal” could be a weather forecast. Telescope observations indicate that an exoplanet nearly 400 light-years away has...

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Is the coronavirus mutating? Yes. But here’s why you don’t need to panic

In novels and movies, infectious pathogens mutate and inevitably become more dangerous. In the blockbuster movie Contagion, for instance, a deadly virus...

Squid edit their genetic material in a uniquely weird place

Squid can edit their genetic information in a place scientists didn’t expect. Longfin inshore squid (Doryteuthis pealeii) are the...

The physics of solar flares could help scientists predict imminent outbursts

Space weather forecasting is a guessing game. Predictions of outbursts from the sun are typically based on the amount of activity observed...

Pfizer’s COVID-19 vaccine is OK for kids 12 to 15 years old, FDA says

Adolescents as young as 12 may soon begin rolling up their sleeves to get COVID-19 vaccines in the United States. The U.S....

‘The Idea of the Brain’ explores the evolution of neuroscience

Neuroscientists love a good metaphor. Through the years, plumbing, telegraph wires and computers have all been enlisted to help explain how the...

A new artificial eye mimics and may outperform human eyes

Scientists can’t yet rebuild someone with bionic body parts. They don’t have the technology. But a new artificial eye brings cyborgs one...

Australia’s wildfires have now been linked to climate change

Human-caused climate change made southeastern Australia’s devastating wildfires during 2019–2020 at least 30 percent more likely to occur, researchers report in a new study published online March...