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Researchers say recently discovered teeth come from a previously undiscovered species of Australopithecus, adding to our understanding of human evolution.

President Trump plans to levy a 50% tariff on all goods from Brazil — the source of about 30% of U.S. coffee imports. This looming tariff threat has sent shock waves through the U.S. coffee industry.

Top water negotiators declined to speak at an upcoming conference amid closed-door meetings about the future of the water supply for 40 million people.

RFK Jr. stunned the global health world when he said the U.S. would halt funding the group that helps provide vaccines to many low-income countries. The study he cited is seen by others as dubious.

NPR's Michel Martin speaks with Peter Harrell of the Carnegie Endowment for International Peace about the Trump administration's deal to allow AI chip sales to China in exchange for revenue.

Pro athletes are increasingly speaking out about mental health challenges. In baseball, the San Francisco Giants have emerged as a leader in setting up mental health resources for their players.

Health secretary RFK Jr. has said seed oils, like canola, soybean and sunflower oil are 'poisoning Americans.' But many researchers say the evidence doesn't back up the claims.

It's been four since the U.S. withdrawal from Afghanistan following the Taliban's return to power. Life for certain groups has deteriorated significantly.

The American Academy of Pediatrics is offering recommendations for COVID vaccinations for young children that differ from CDC guidance. NPR speaks with Dr. Céline Gounder.

New and higher tariffs are set to take effect this week, amid signs the president's economic policies are resulting in higher prices and slower economic growth.