Nell Greenfield Boyce

Then the researchers altered the recordings to create lower quality versions.

People who heard the high quality audio were consistently more likely to have favorable impressions of the speaker, seeing them as more intelligent, attractive and convincing. A report on this research appears in the Proceedings of the National Academy of Sciences. Nell Greenfield Boyce. NPR News.

People who heard the high quality audio were consistently more likely to have favorable impressions of the speaker, seeing them as more intelligent, attractive and convincing. A report on this research appears in the Proceedings of the National Academy of Sciences. Nell Greenfield Boyce. NPR News.

Unlike dogs, cats, and horses, people can't literally prick up their ears. Our evolutionary ancestors seem to have lost this ability millions of years ago. Recently, though, lab scientists put electrodes on the muscles around people's ears and ran some tests. And the electrodes registered tiny amounts of electrical activity in one muscle whenever people were listening especially hard.

Unlike dogs, cats, and horses, people can't literally prick up their ears. Our evolutionary ancestors seem to have lost this ability millions of years ago. Recently, though, lab scientists put electrodes on the muscles around people's ears and ran some tests. And the electrodes registered tiny amounts of electrical activity in one muscle whenever people were listening especially hard.

Unlike dogs, cats, and horses, people can't literally prick up their ears. Our evolutionary ancestors seem to have lost this ability millions of years ago. Recently, though, lab scientists put electrodes on the muscles around people's ears and ran some tests. And the electrodes registered tiny amounts of electrical activity in one muscle whenever people were listening especially hard.

It was the muscle that, in other animals, lifts the ear up. The research appears in the journal Frontiers in Neuroscience. Researchers say a smart hearing aid could monitor this muscle to keep track of how much effort it was taking for someone to hear and then respond accordingly. Nell Greenfield-Boyce, NPR News.

It was the muscle that, in other animals, lifts the ear up. The research appears in the journal Frontiers in Neuroscience. Researchers say a smart hearing aid could monitor this muscle to keep track of how much effort it was taking for someone to hear and then respond accordingly. Nell Greenfield-Boyce, NPR News.

It was the muscle that, in other animals, lifts the ear up. The research appears in the journal Frontiers in Neuroscience. Researchers say a smart hearing aid could monitor this muscle to keep track of how much effort it was taking for someone to hear and then respond accordingly. Nell Greenfield-Boyce, NPR News.

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Astronauts brought back moon rocks, and almost all date back to around 4.35 billion years ago. Trouble is, scientists think the moon got created much earlier than that, when an object the size of Mars slammed into the Earth. Now, in the journal Nature, researchers offer this explanation.

Astronauts brought back moon rocks, and almost all date back to around 4.35 billion years ago. Trouble is, scientists think the moon got created much earlier than that, when an object the size of Mars slammed into the Earth. Now, in the journal Nature, researchers offer this explanation.

As the moon moved away from Earth, at a certain point, it underwent a temporary period of remelting due to gravitational forces that heated it up. Francis Nimmo is with the University of California, Santa Cruz.

As the moon moved away from Earth, at a certain point, it underwent a temporary period of remelting due to gravitational forces that heated it up. Francis Nimmo is with the University of California, Santa Cruz.

Creating new rocks that appeared to be younger than the true age of the moon. Nell Greenfield Boyce, NPR News.

Creating new rocks that appeared to be younger than the true age of the moon. Nell Greenfield Boyce, NPR News.