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Scientists soared through clouds with a new instrument that takes 3-D pictures of the edge. What they learned about the size and density of droplets surprised them and might lead to better forecasts.

Late-night coffee, tea or cola does more than keep you up, scientists say. The amount of caffeine in a double espresso can delay the internal clock in cells throughout your body by about 40 minutes.

Scientists used an estimate of how much fossil fuel is left in the ground to do computer simulations and come up with a worst-case scenario.

Deep inside a rocky chamber, reached by a narrow crevice, researchers found more than 1,500 fossilized bones of what may be the gravesite of a creature never before identified by science.

Cellphone records could help epidemiologists predict which cities and towns might be hit next by dengue, the most rapidly spreading mosquito-borne disease in the world.

That's because cellphone records let scientists track how people actually move around, says Amy Wesolowski, a researcher who models epidemics at the Harvard ...

Earth is home to more than 3 trillion trees, a new map of forest density shows. That's more than anyone realized. But the total is also down about 46 percent since the first humans arrived.

Tiny island nations, Latin American developing countries and even non-joiners like Switzerland have all found more power and influence in climate negotiations after forming or joining a group.

Given two choices of attractive mates, female frogs pick the top vocalist. But add a third, inferior male to the mix, and females go for No. 2. The "decoy effect" shapes some human choices, too.

Dorothy Parker considered New York City her beloved hometown, but Parker's ashes can be found in Baltimore. Where were they before that? (This piece initially aired June 7, 2012 on Morning Edition.)

Scientists studying animals in their natural habitats can now just send in a drone with a camera, rather than trudging through rough terrain. But a new study finds that the drones don't go unnoticed.

Octopuses are cool. They can regrow lost arms, change the color of their skin, and are surprisingly smart. Scientists who sequenced the first octopus genome say it's nearly as big as a person's.

An international team of astronomers has measured the energy produced within a large portion of space more precisely than ever before, and their work shows how the universe is slowly dying.

Take a close look at a house cat's eyes and you'll see pupils that look like vertical slits. But a tiger has round pupils — like humans do. And the eyes of other animals, like goats and horses, have slits that are horizontal.

Scientists have now done the first comprehensive ...

Foraging bumblebees can pick up nearly half their weight in pollen before heading home to the hive, research shows. All that weight tucked into hollows on their hind legs can complicate flying.

Scientists who study bird behavior have made fake eggs to put in nests to see how birds react. This handicraft is going high-tech. (This piece first aired on May 26, 2015, on All Things Considered.)

The "new" dinosaur — named Wendiceratops pinhornensis — lived about 79 million years ago and helps scientists understand the early evolution of the family that includes Triceratops.

A clump of a mammoth's fur bought on eBay led scientists to a long list of ways the extinct species was special. One specific gene likely played a role in helping mammoths thrive in icy weather.

Speeches by high-level representatives were an attempt to keep momentum going as the world moves toward a key summit in Paris this year, which may produce an agreement to control greenhouse gases.

The United Nations is having a high-level climate meeting ahead of the end-of-year meeting in Paris that will hopefully result in a major new agreement to rein in greenhouse gases.

Scientists have figured out how massive chunks of ice trigger these seismically detectable events when they break off a glacier. The findings could help researchers track ice loss from glaciers.