Ari Daniel

A new study finds that butterflies probably originated in North or Central America around 100 million years ago. (Story originally aired on All Things Considered on May 15, 2023.)

Butterflies likely split from nocturnal moths around 100 million years ago in present-day western North America or Central America, a new study of the winged insects finds.

A new study finds that butterflies probably originated in North or Central America around 100 million years ago.

For decades, the genre has had a stealth mission: promoting public health. It started with Doug E. Fresh's "Stroke Ain't No Joke."

Gertrude Oforiwa Fefoame says she could not imagine "what the future had in store." She faced sorrow — but ultimately triumphed. She is the new chair of the U.N. committee for disability rights.

A sound artist set out to capture the acoustic wonder of a famed swath of quaking aspens. It's one of the largest trees on the planet, known as Pando.

They're activist and advocates from Brazil, Colombia, India, Kenya, Lesotho and the U.S. We wanted to know: How do they stay positive in the face of the world's many problems and woes?

Scientists have learned that northern elephant seals — massive creatures found along the Pacific Coast of North America — cobble together a couple hours of sleep using underwater power naps.

At the Skoll World Forum this week, South Africa's Reach Digital Health was one of five honorees. They offer health advice via mobile phones to millions, focusing on pregnancy, babies and COVID.

Baseball home runs appear to be getting a little extra help from climate change, a new study finds. That's because baseballs can fly farther through air that's made thinner by warmer conditions.

A new study finds a link to warming temperatures and a rise in baseball home runs.

The World Health Organization turns 75 today. Forged in the years following World War II, many hoped people would finally work together to eradicate some of the world's worst diseases.

We asked public health leaders what the World Health Organization should add to its docket in this anniversary year. Answers ranged from pay more attention to teen health to restore the world's trust.

The German cockroach evolved to live only in human environments. This roach is very good at adapting to pest control methods — even if it means changing its mating rituals.

The German cockroach evolved to live only in human environments. This means it's very good at adapting to pest control methods — even if it means changing its mating rituals.

In response to our series on spillover viruses, you had many questions: from the role of climate change to possible benefits. We turn the mic to you for a special edition of 'Hidden Viruses.'

Scientists have sequenced the genome of Ludwig van Beethoven from two-century-old locks of hair, and found clues about the ailments that plagued him in life.

While in many ways different from Earth, Venus has some geological similarities to our own planet. And now, scientists have discovered evidence of volcanic activity on Venus.

Data from an old NASA spacecraft reveals a volcano erupted on the surface of Venus in 1991, a new study in Science says.

Scientists have confirmed that toothed whales have a vocal register and can produce a variety of sounds –- something previously confirmed only in humans and crows.