Christopher Intagliata

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After Sunday's massive protests in Cuba, the government there employed a common authoritarian tactic. It blocked the internet.

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Beneath the pine and birch forest of northern Germany lies Unicorn Cave, named for the bones found by medieval treasure hunters.

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On the campaign trail last summer, candidate Joe Biden promised to make his running mate, Kamala Harris, the last voice in the room before he made important decisions. And in March of this year, he joked about what he meant by that.

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Simone Biles, already the most decorated gymnast in history, has surpassed expectations again. On Saturday, she performed a move considered so dangerous that no other woman has ever attempted it in competition.

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A fragile cease-fire is still in place in the Middle East. After 11 days of explosive conflict between Israel and Hamas, President Joe Biden yesterday made his first major remarks about the fighting.

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This story is part of an NPR series, We Hold These Truths, on American democracy.

Last summer, DonnaLee Norrington had a dream about owning a home. Not the figurative kind, but a literal dream, as she slept in the rental studio apartment in South Los Angeles that she was sharing with a friend.

At around 2 a.m., Norrington remembers, "God said to me, 'Why don't you get a mortgage that doesn't move?' And in my head I knew that meant a fixed mortgage."

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A recent study of mummified parrots found in a high-altitude desert region in South America suggests to researchers that, as far back as some 900 years ago, people went to arduous lengths to transport the prized birds across vast and complex trade routes.

The remains of more than two dozen scarlet macaws and Amazon parrots were found at five different sites in northern Chile's arid Atacama Desert — far from their home in the Amazon rainforest.

So how did they get there?

Scientists are inching one step closer toward redefining the length of a second.

To do that, they're using atomic clocks.

Atomic clocks, which look like a jumble of lasers and wires, work by tapping into the natural oscillation of atoms, with each atom "ticking" at a different speed.

Modern conveniences including cellphones, the Internet and GPS are all made possible through the ticking of atomic clocks.

Penguins are known for huddling on Antarctic ice, or marching across windswept expanses of the frozen continent. But there are at least 18 species of penguins populating the Southern Hemisphere — and many don't fit that frigid stereotype.

There are actually only two species of penguin that really love ice, says Grant Ballard, chief science officer of Point Blue Conservation Science in Petaluma, Calif. Other species, like the Galapagos penguin, perch on dark volcanic rock, and can endure blasting hot air temperatures of 100 degrees.

Everyone Needs A Buddy. Even Sharks

Aug 13, 2020

Sharks are often maligned as Hollywood monsters, the lone wolves lurking in the deep, hunting for prey. (Cue Jaws theme song).

But that caricature of sharks is increasingly out of step with what scientists are learning about the animals. Instead, they say, some species of sharks are social creatures who return day after day to a group of the same fellow sharks.