As the U.S. expands its attacks on Iran, and Iran retaliates with bombardments across the Middle East, the conflict grows ...

The price of crude oil briefly neared $120 a barrel Monday as Iran named Mojtaba Khamenei the supreme leader and then launched new attacks at Israel and Gulf states.

Colonialism drove beavers off their land, harming both the environment and people living on it. Blackfeet Nation beaver ...

The price of crude oil briefly neared $120 a barrel Monday as Iran named Mojtaba Khamenei the supreme leader and then launched new attacks at Israel and Gulf states.

Scientists analyzed the urine of wild chimpanzees who'd feasted on fallen fruit to see how much alcohol they consumed from the fermented sugars.

Israel needs three weeks to destroy Iran's military, Kurds say they're not guns for hire, Strait of Hormuz blockage risks global energy shock.

Geese's iconic "V" formations and trademark squawks can be seen and heard overhead as they go back and forth to the south ...

For decades, parents were told to help children build willpower like a muscle, to resist things like junk food and too much ...

NPR's Michel Martin asks energy industry analyst Clay Seigle how high oil prices could go amid the war with Iran.

A senior Israeli defense official tells NPR that Israel needs three more weeks to accomplish its goal of decimating Iran's military forces.

President Trump's war against Iran carries echoes of the 2003 war in Iraq. NPR's Leila Fadel explores the lessons learned to understand whether regime change stands a chance in neighboring Iran.

Oceans are rising as the climate changes, threatening coastal cities. A new study shows that much more of the world's population is vulnerable than earlier predictions had estimated.