Research shows nearly 1 in 5 school-age children are using melatonin to help them sleep. But these supplements are unregulated and pediatricians worry about their safety and the dose.
A new study showed that cats fetched objects instinctively, in the absence of overt training. Fetching is defined as when the animal retrieves an object that's thrown.
NPR's Juana Summers talks with Regina Barber and Viet Le of Short Wave about parrots dunking food in water, a giant hole in the sun and the lifeforms neglected by emoji makers.
Israel's military says the system makes it more efficient and reduces collateral damage. Critics see a host of problems with the nation's use of AI, but other militaries will likely follow suit.
An experimental technology that might someday allow infertile couples, as well as gay and trans couples, to have genetically related children stirs hope. So far, the technique has worked in mice.
One of the best and most reliable meteor showers of the year peaks Wednesday night and Thursday morning. And with the moon only a sliver full, viewing conditions should be close to ideal.
Zebra finches who did not sing every day quickly lose their vocal prowess, a new study finds. The results could potentially shed light on vocal rehabilitation for humans, too.
More scientific evidence has surfaced to show that while mittens may be your sweet angel, letting her roam outside is also a big threat to biodiversity.
A new study shows male zebra finches must sing every day to keep their vocal muscles in shape. Females prefer the songs of males that did their daily vocal workout.