A new study has identified two species of Brazilian birds, the bare-throated bellbird and the red-legged seriema, as the loudest in nature.

The move, affecting about one-fifth of the National Science Foundation’s primary research budget, is the latest sign of how the White House is asserting more control over grants.

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Over 90 percent of Ukraine’s scientific discoveries have been attributed to Ukraine’s National Academy of Sciences, including advancements in astronomy and military technology.

© Finbarr O'Reilly for The New York Times

Scientists observed a family of pygmy raccoons near a Cozumel beach club learning from one another how to craft balls from paper, an indication that the animals have a culture.