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Most animals leave their home turf when they reach adulthood to avoid competing with relatives. But here's an exception: More than three decades of dogged research shows that prairie dogs are more likely to disperse when all of their family members are gone.

Jon Underwood, a British Web designer and self-named "death entrepreneur," helps people talk about the taboo topic over tea and cake. "When we acknowledge that we're going to die, it falls back on ourselves to ask the question, 'Well, in this limited time that I've got, what's important for me to do?' " Underwood says.

As famine plagues Gaza, NPR exclusive reporting looks at the U.S. role in the humanitarian crisis. Many former officials NPR interviewed share a common refrain: Did we do enough to prevent this?

Research into why some people have strong memory well into old age suggests that their brains are different from their peers. Some parts of the brains of "superagers" responsible for attention, thinking and memory seem to be spared the typical age-related shrinkage.

Denmark's foreign minister summoned the top U.S. diplomat in the country after it was reported that at least three people with connections to President Trump have been carrying out covert influence operations in Greenland.