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There may be an octopus arms race underway. And that's not even a joke about tentacles: Octopuses are actually fighting, and potentially using weapons.

The creatures are hardly team players under the best of circumstances.

"Octopuses in general are regarded as fairly solitary animals," says Peter Godfrey-Smith, a marine biologist at the City University of New York. He is studying octopuses in Australia's Jervis Bay — specifically, the common Sydney octopus, also known as the gloomy octopus.

Richard Engel, NBC's chief foreign correspondent, talks with NPR's Arun Rath about his reporting on the Islamic State's brutal tactics to recruit the next generation of their fighting force.

Chinese authorities have arrested 197 people who are accused of spreading rumors on social media about the recent stock market crash and the deadly explosion at Tianjin earlier this month.

Updated at 12:10 p.m. ET

Three refugee children who were rescued from a minivan as they were being smuggled into Europe have reportedly disappeared from a hospital where they were being treated for dehydration.

Meanwhile, there were more arrests in a similar case in Austria last week in which 71 migrants were found dead in a truck.

On a Saturday morning, in a group of Rio de Janeiro's notoriously violent shanty towns, or favelas, heavily armed pacification police stand on one side of the street, on the other side, protestors call for them to withdraw.

On the protest side, Mayse Freitas lists the people she knows who have been injured or killed in shootouts in the area recently.

"I'm a mother and a grandmother," Freitas says. "I don't want my children or grandchildren to be next."

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Transcript

RACHEL MARTIN, HOST:

To a visitor, it seems like a curious bit of territory for the Turkish military and the Kurds to be fighting over: steep rocky hills covered in brown windblown grass divided by patches of green forestland.

But if you get off the main road, and follow a gravel track into the hills, a makeshift camp emerges. This is where Kurdish activists have put themselves in the line of fire between the Turkish army and the youth faction of the Kurdistan Workers Party, or the PKK.

About an hour's drive south of Kabul, there's a vast Buddhist archaeological site dating back at least 1,500 years. It happens to be sitting on top of one of the biggest untapped copper deposits in the world, potentially worth billions of dollars.

How Fishermen's Bragging Rights Gave Birth To Fine Art

21 hours ago

Fishing lore is full of tales about "the one that got away," and fishermen have been known to exaggerate the size of their catch. The bragging problem is apparently so bad, Texas even has a law on the books that makes lying about the size or provenance of a fish caught in a tournament an offense that could come with a felony charge.

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