Analysis of the fossil record shows a mysterious mass extinction that decimated the diversity of sharks in the world’s oceans, and they’ve never fully recovered.
Researchers urge an open mind, saying lack of evidence leaves theories of natural spillover and laboratory leak both viable.
The researchers issued a call to action to improve indoor air quality as a safeguard against the spread of contagions like the coronavirus.
The rare form of the element found on the Pacific seabed points to its violent birth in colliding stars.
Culture, once considered exclusive to humans, turns out to be widespread in nature.
A new study shows that a 20-year-old drug prevents scarring in mice. If it works on humans, it could change the lives of those with disfiguring wounds.
An estimation of the iconic predator’s total population can teach us things about dinosaurs that fossils cannot.
Mars once had rivers, lakes and seas. Although the planet is now desert dry, scientists say most of the water is still there, just locked up in rocks.
Eyeless roundworms may have hacked other cellular warning systems to give themselves a form of color vision.
A deep dive into dinosaur data suggests that teenage T. rexes and other juvenile carnivores shaped their ecosystems.
Cygnus X-1, one of the first identified black holes, is much weightier than expected, raising new questions about how such objects form.
A shift in Earth’s poles 42,000 years ago may have drastically altered the planet’s climate, scientists have found — and they’re naming the period after the author Douglas Adams.
The aquatic mammals’ sound waves penetrate into the rocks under the waves, which could assist seismologists’ surveys.
New research casts doubt on the idea that prior infections with garden-variety coronaviruses might shield some people, particularly children, amid the pandemic.
Once immunity is widespread in adults, the virus rampaging across the world will come to resemble the common cold, scientists predict.
A new model further untangles the complex strategy games playing out under our feet.
A February conference by the drug company Biogen was initially thought to have infected 99 people. By the end of October, it was feared that the number had grown as high as 300,000.
Something was decimating the salmon that had been restored to creeks around Puget Sound.
A provocative study suggests that certain colds may leave antibodies against the new coronavirus, perhaps explaining why children are more protected than adults.
Several prominent publishers said they did not track the race and ethnicity of the researchers contributing to their platforms.
Research on fossil canine genomes is expanding and producing some surprises about the lives of dogs and humans in prehistoric times.
Older male chimps follow a pattern that researchers also see in humans, preferring to have positive relationships with a few good friends.
The immune systems of bats are weird, but we don’t know how weird, how they got that way or enough about other animals.
The rate of death went down in patients over 65. Researchers also found that children of all ages became infected and spread the virus to others.
Younger children are about half as likely as older teenagers and adults to become infected, new studies suggest.
Against the backdrop of climate change, the delicate underwater ecology of Alaska’s Aleutian Islands is hurting from declines in otters.
Studies of patients with severe cases of Covid-19 show the immune system lacks its usual coordinated response.
Commingling tissues and blood would normally prompt a massive immune response. These deep sea lovers found a workaround.
Coronavirus shutdowns led to “the longest and most coherent global seismic noise reduction in recorded history,” scientists report.
An extinct version of the smallpox virus dating to 1,400 years ago prompts speculation about viruses becoming more lethal over time.
Exercise prompts the liver to pump out a little-known protein that appears to rejuvenates the brain, a new study found.
Unlike vertebrate embryo cells, which signal to each other over long distances, sea squirt embryo cells talk only to those they’re closest to.
This spring, researchers at Regeneron’s Westchester headquarters found themselves in one of the country’s first coronavirus hot spots.
When a planarian loses its eyes, cellular guides connect new ones to its brain so it can see again.
A married pair of virologists in Moscow tested a vaccine on their own children in the 1950s. Now, a side effect they found is sparking new hope for a defense against the coronavirus.
There’s “no nook or cranny” on the planet where it doesn’t end up, the lead researcher on a new study said.
A series of animal experiments may point the way to an effective human vaccine, scientists said.
Covid-19 isn’t going away soon. Two recent studies mapped out the possible shapes of its trajectory.
Experts said the new data suggest that cases could soar in many U.S. communities if schools reopen soon.
The sun seems a little less active than hundreds of similar stars in our galaxy, which could play a role in why life exists in our solar system.
If people with no symptoms are spreading the coronavirus, as some studies suggest, it may be time to give face masks the kind of advertising and promotion that support condoms as lifesavers.