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Recovering missing animals requires understanding both animal and human behavior.

Elon Musk's role in the White House allows him to cancel contracts and influence policy, potentially benefiting his companies. Supporters say he has the best technology.

Children's Health Defense, founded by the health secretary, had published online a vaccine-safety page that looked like the agency's but that suggested links to autism.

The number of cases will increase, but the rates seem to be declining with every birth cohort that reaches advanced ages, researchers said.

Researchers have found evidence that a common North American spider species alters its webs to deal with urban noise pollution.

A chaotic restructuring ordered by DOGE threatens to degrade services for veterans of wars in Vietnam, Iraq and Afghanistan.

The agency will no longer shut down "any stage of energy production," absent an imminent threat, a new memo says, and will curtail efforts to cut pollution in poorer areas.

Firefly Aerospace's successful moon lander has yielded a trove of data that scientists will pore over for years.

Vaccination efforts have faltered, and many residents have turned to alternative treatments endorsed by Robert F. Kennedy Jr., the health secretary.

His studies showed that a B vitamin deficiency could cause hardened arteries. It took the medical profession more than a decade to catch up.