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Some wolf puppies will unexpectedly play "fetch," researchers say, showing that an urge to retrieve a ball might be an ancient wolf trait and not a result of dog domestication.

The Government Accountability Office opined on Thursday that the Trump administration's actions in the Ukraine affair went beyond the bounds of a law called the Impoundment Control Act.

Sepsis, or blood poisoning, arises when the body overreacts to an infection. An analysis finds that it may be involved in 20% of deaths worldwide, twice the proportion previously estimated.

Although the country has been hit hard, Iranians have managed to live under sanctions for four decades.

In a new decision, a federal watchdog says President Trump broke a budget law when he froze funds to Ukraine, a decision at the heart of the impeachment trial.

The tech giant, which says it has been "carbon neutral" for years, is vowing to go "carbon negative" — by cutting emissions, planting trees and investing in new carbon removal technology.

The fallout continues from a sign-stealing scandal involving the Houston Astros during the 2017 and 2018 seasons. Beltrán was part of the team in 2017, and a league investigation said he was involved.

Birds change the shape of their wings far more than planes. The complexities of bird flight have posed a major design challenge for scientists trying to translate the way birds fly into robots.

After a bookstore in England sent out a glum tweet about its worst sales day in memory, people inundated the store with new orders. NPR's Mary Louise Kelly talks with longtime employee Robert Sansom.

The organization that puts on the annual Grammy Awards says Deborah Dugan has been placed on administrative leave after an allegation of misconduct by a senior female member of the organization.