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After the virus returned to Hawaii this fall, testing the shots in the endangered seal species became urgent.

Shifting politics, intensive lobbying and surging disinformation online have undermined international efforts to respond to the threat.

Less than 10 percent of heart and lung surgeons in the United States are women. At a recent conference, they vowed to change that.

The agency's top vaccine regulator said that a review had found that the children were likely to have died "because of" the shots. But public health experts want to examine the data.

On its own, LATE dementia is less severe than Alzheimer's, but in combination, it makes Alzheimer's symptoms worse, scientists say.

With the help of A.I., a historian has identified the killer in a 1941 image that defined the savagery of the Nazi regime.

Industry groups and scientists have urged the Trump administration to reconsider its plan to close a renowned Agriculture Department center in Maryland and disperse its work around the country.

In a small study, pet cats greeted male owners with more vocalizations than they did female caregivers.

Oil and gas firms were supposed to start reducing methane, a powerful driver of climate change. The agency is giving them more time and may cancel the requirement.

Often called the world's most famous face reader, he inspired the TV show 'Lie to Me.' But some questioned his assumption that human expressions were 'pan-cultural.'