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Part 5 of the TED Radio Hour episode Hidden

About Andrés Ruzo's TED Talk

As a boy, Andrés Ruzo heard stories of a mythical boiling river. Years later, as a geoscientist, he recounts his journey deep into the Amazon to see if the river actually exists.

About Andrés Ruzo

Part 3 of the TED Radio Hour episode Hidden

About Ed Yong's TED talk

Science writer Ed Yong delves into the hidden world of parasites. He describes how parasites, once inside a host's body, become masters in the craft of manipulation.

About Ed Yong

After days of anticipation, a fuzzy wing flopped out of the remains of an egg shell Friday morning, signaling the hatching of a baby bald eagle who's been watched and fretted over, via an eagle cam set up at the National Arboretum in Washington, D.C.

The bird then worked its way out of its shell over the next hour, emerging more fully around 8:20 a.m. ET. Throughout the process, its parent eagle alternated between peering attentively (to be honest, eagles don't seem capable of anything but) and nestling over the fledgling and a second, as-yet-unhatched, egg.

When it comes to milk production, Gigi the cow is queen.

"She's the diva of all divas," says Robert Behnke, a Brooklyn, Wis., dairy farmer and Gigi's owner.

And she's earned that diva status: Earlier this year, she produced more milk in one year than any other cow had done before — just shy of 75,000 pounds of milk, roughly equivalent to 8,700 gallons. That's triple the national average for a dairy cow to produce in a year.

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Pigeons in London have a bad reputation. Some people call them flying rats. And many blame them for causing pollution with their droppings. But now the birds are being used to fight another kind of pollution in this city of 8.5 million.

"The problem for air pollution is that it's been largely ignored as an issue for a long time," says Andrea Lee, with the London-based environmental organization ClientEarth. "People don't realize how bad it is, and how it actually affects their health."

Five weeks ago, a 1-year-old German shepherd-husky mix with startling blue eyes fell off a fishing boat in the Pacific Ocean north of San Diego. The dog, named Luna, was miles from land.

She was reported missing on Feb. 10 by her owner, fisherman Nick Haworth, who told authorities that Luna was a strong swimmer and would head toward land. But the nearest shoreline was San Clemente Island, home to a U.S. naval facility and about 2 miles from where the dog fell into the water.

Some 20 carmakers have committed to making automatic emergency braking systems a standard feature on virtually all new cars sold in the U.S. by 2022, according to a new plan from the National Highway Traffic Safety Administration and the Insurance Institute for Highway Safety.

Automatic brakes are designed to stop a vehicle before it collides with a car or another object. Experts say that making them standard could prevent as much as 20 percent of accidents.

One of two eggs laid by a mated pair of bald eagles in Washington, D.C., is hatching, according to officials watching the nest at the U.S. National Arboretum.

"We have a pip in process!!" said an update sent by the American Eagle Foundation on Thursday morning, which clarifies, "It's not technically a full pip until there is a full hole."

The hole in the shell appears to have grown larger as of mid-afternoon Thursday, but the eaglet has yet to emerge. The group says it could take between 12 and 48 hours for the eaglet to fully emerge from the shell.

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All the scheduled briefs are in for the legal battle between Apple and the FBI. The parties will be in a federal courtroom in the Central District of California next week.

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In a major concession to critics and animal welfare groups, SeaWorld Parks & Entertainment Inc. says it will stop breeding captive killer whales.

SeaWorld's treatment of its killer whales, or orcas, was put in the spotlight three years ago by Blackfish, a documentary that examined the death of SeaWorld trainer Dawn Brancheau, who was killed by an orca named Tilikum. Since then, in a steady campaign on social media, critics have demanded SeaWorld end its orca breeding program.

The Federal Communications Commission is proposing, for the first time, privacy regulations for Internet service providers. The goal is to let consumers weigh in on what information about them gets collected and how it's used.

As they connect us to the Internet, ISPs have insight into our lives — websites we frequent, apps we download or locations we visit — and may use that data for their own promotions or sell it to data brokers to be used for marketing or other purposes.

How Do You Start Mapping Unmapped Streets?

Mar 16, 2016

Google Street View allows people to virtually walk through places from the Aeon Mall in Okinawa, Japan, to historic sites like Petra in Jordan without leaving their homes.

But type in Dar es Salaam, Tanzania, and you won't see anything. That's because the city is basically off the Google grid, as are many locations in developing countries.

A joint effort between the World Bank's Dar Ramani Huria and Swedish startup Mapillary aims to change that.

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