Nobel laureate makes regulatory T cells that last longer in the body, boosting clinical hopes

Millennia before the first cities, early Mesopotamians probably harnessed tides to irrigate crops

Prophylactic use of azithromycin saves vulnerable children’s lives, but could trigger antibiotic resistance

Science chats with wildlife epidemiologist Tony Goldberg about what he’s learned from becoming a meal for parasites

Patients who got shots of mRNA before starting a type of cancer immunotherapy lived much longer

Study pinpoints likely date for a massive earthquake on the Puerto Rico Trench—and highlights an underappreciated regional hazard

Studies of rodents with a menstrual on/off switch could help people with endometriosis and other disorders

Unusual hiring process raises fears of political favoritism

To obtain the toxic chemical cantharidin, insects suck beetles’ blood—and even munch on their digested remains

Analysis of thousands of fossils pushes back change in beetles’ diets by more than 37 million years

Electrostatic charges may help roundworms infect a wide variety of hosts

Listing could affect availability for biomedical studies

Oldest known sea turtle soft tissues could help reveal how a variety of vertebrates adapted to ocean living

An unusual relationship could shed light on how insects choose their partners

Scientists are hunting for ancient RNA in Svalbard’s permafrost, hoping to shed light on the evolution of viral diseases

Excusing record-keeping “misconduct” flagged in earlier investigative report, City University of New York concluded in letter that image doctoring by Hoau-Yan Wang was not proved

Tetsuro Matsuzawa agreed to pay Kyoto University $219,000 to end legal dispute

After years of delay and political wrangling, DOE’s Hanford site opens vitrification plant

Iconic amphibians took an unexpected path across the globe, study finds—with toxins as a “game changer”

Modern humans’ tolerance for the toxic metal may have helped them outcompete our closest evolutionary cousins

New fossils reveal Paranthropus had massive yet dexterous hands

Scientists reopen the case of “splatatouille”

Birch bark tar, used as chewing gum and glue, provides rare window into life 6000 years ago

Agency’s prestigious training programs among those spared, while other key offices are scrapped