Humans

Close relatives of the coronavirus may have been in bats for decades

Viruses from the coronavirus lineage responsible for COVID-19 have been circulating in...

Boosting a liver protein may mimic the brain benefits of exercise

Exercise’s power to boost the brain might require a little help from...

Protein from blood of exercising mice rejuvenates brains of ‘couch potato’ mice

It’s well established that exercise can sharpen the mind: People and mice...

Recent

More evidence hints that hydroxychloroquine doesn’t help treat COVID-19

The malaria drug hydroxychloroquine has been touted by some, including President Trump, as nearly a miracle cure for COVID-19. But new preliminary...

The largest Arctic ozone hole ever measured is hovering over the North Pole

A curious confluence of atmospheric events has produced the largest ozone hole ever measured over the Arctic. A powerful...

A ‘crazy beast’ from the time of dinosaurs belongs to an obscure mammal group

A bizarre fossil provides a better look at a little-known group called gondwanatherians The ancient mammal Adalatherium hui is...

Close relatives of the coronavirus may have been in bats for decades

Viruses from the coronavirus lineage responsible for COVID-19 have been circulating in bats for decades, long before the virus started infecting people...

Climate change made a southwestern U.S. drought one of the worst in 1,200 years

The drought in southwestern North America that lasted from 2000 to 2018 is among the most severe to strike the region in...

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Red giant stars that eat planets might shine less brightly

When giant stars eat giant planets, their starlight may shine a bit less brightly. That dimming could affect how astronomers measure distances...

A squid fossil offers a rare record of pterosaur feeding behavior

A fossil of a squid with a pterosaur tooth embedded in it offers extraordinary evidence of a 150-million-year-old battle at sea. While...

The largest Arctic ozone hole ever measured is hovering over the North Pole

A curious confluence of atmospheric events has produced the largest ozone hole ever measured over the Arctic. A powerful...

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...