But 35 years on from Dumbacher’s serendipitous discovery, much remains a mystery about New Guinea’s poisonous birds. “There’s a ton that we don’t know—from the ecology of the birds to ...

Science A new study knocks down a popular hypothesis about why birds sing at dawn June 20, 20255:00 AM ET By James Doubek ...

Researchers have some new evidence about what makes birds make so much noise early in the morning, and it's not for some of the reasons they previously thought. For decades, a dominant theory about ...

A new study knocks down a popular hypothesis about why birds sing at dawn ... By James Doubek Jun 20, 2025 5:00am (NPR) An oriental magpie-robin perches on a tree branch in Bangkok in 2022.

For decades, a dominant theory about why birds sing at dawn — called the "dawn chorus" — has been that they can be heard farther and more clearly at that time.

Researchers have some new evidence about what makes birds make so much noise early in the morning, and it's not for some of the reasons they previously thought. For decades, a dominant theory about ...

A new study knocks down a popular hypothesis about why birds sing at dawn By James Doubek Published June 20, 2025 at 4:00 AM CDT Jack Taylor ...