Chasing Colombia’s ‘Cocaine Hippos’
After the Colombian National Police killed Escobar in 1993, zoos and private collectors acquired the animals, all except the hippopotamuses. They are only hippos in the wild outside Africa. Escobar started with four hippos. Today, a UC San Diego biologist estimates there are 80 to 100.

Human Terrain, Visualizing The World’s Population In 3D
Kinshasa is now bigger than Paris. Guangzhou, Hong Kong, and Shenzhen are forming an epic, 40 million-person super city. Over the past 30 years, the scale of population change is hard to grasp. How do you even visualize 10 million people?

“Campesinos”, The Lives Of Patagonian Cowboys
Campesinos explores the lives of Patagonian Cowboys (Gauchos) living in Chile, at the end of the world in isolation. It is a portrait of sacrifice, tradition and endurance in extreme conditions, identifying what it truly means to be alone.

How Africa Can Get Rich
Africa is changing so fast, it is becoming hard to ignore. In the short term, the continent faces many problems, but in the long term, it could rival China’s economic might. By the end of this century, Africa is set to play a much bigger role in world affairs. The Asian growth miracle is likely to slow Africa’s rapid rise could be next.

One Of The Country’s Largest Utilities Is A Fiery Mess. How Can California Fix It?
For the last 150 years, Pacific Gas & Electric has been playing political hardball to maintain its monopoly over California’s electricity. Last year, a PG&E power line ignited the Camp Fire, which killed 85 people, making it the deadliest wildfire in the state’s history.

The Mysterious Final Voyage Of The Alta, Ireland’s Doomed Ghost Ship
The MV Alta drifted without a soul on board in the Atlantic ocean for 18 months, before crashing into the coast of Ireland. Tracking and current data give us intriguing clues about its final, fateful voyage.

In Search Of Russia’s Lost Gold
Before World War I, Russia possessed the third-largest gold reserve in the world, bested only by the US and France. During the Russian Revolution, the Bolsheviks captured the entirety of Tsar Nicholas II’s family gold reserve – or so they thought.

At Baltimore’s National Aquarium, Climate Change Presents Challenges
After a public backlash against marine animal parks brought on by the documentary Blackfish, the aquarium decided to move its prized pod of dolphins to a first-of-its-kind sanctuary.

These Death-Defying Human Towers Build On Catalan Tradition
Catalonia is ruled by the Spanish government, but its people have been constructing independent kingdoms for centuries. By climbing up backs and balancing on shoulders, Catalonians of all ages stack their bodies on-top each other to build castells, or human towers.

Can One Earthquake Trigger Another On The Other Side Of The World?
It’s well known that natural disasters can cause others in their immediate vicinity, for instance, hurricanes are often accompanied by flooding, and earthquakes are followed by aftershocks. But what about longer distance interactions? Could one earthquake trigger another on the other side of the world?

“Glacier Exit”, A Portrait Of Rapid Environmental Change
Filmmaker Raphael Rogers stood on the ice dunes of the glaciers of Alaska in the midst of a snowy winter. The silence and majesty of the mountains surrounding us, the bluest ice we had ever seen and the steady rush of ice turned to water.

A Corridor Runs Through It
Imagine yourself as a modern-day alligator in central Florida, where 12 acres of wild land is sacrificed to development every hour. This is a story about what happens when the South’s creatures no longer have room to move — and about a project aimed at preserving the few corridors that connect what remains of the wild land.

Human Population Through Time
It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion. But growth has begun slowing, as women have fewer babies on average. When will our global population peak? And how can we minimize our impact on Earth’s resources, even as we approach 11 billion?

Canada’s Secret Beach That Will Transport You To The Tropics
Ontario’s Big Sandy Bay has a hidden sandy beach that will give you exotic vibes. Located on Wolfe Island, Big Sandy Bay is just a boat ride away from Kingston, and it has a secret swimming paradise.

Towing An Iceberg: One Captain’s Plan To Bring Drinking Water To 4 Million People
After three years of severe drought, Cape Town was at risk of becoming one of the first cities in the world to run out of municipal water. Nicholas Sloane has a fix for a country struggling with its supply.

China’s Leftover Men: Desperately Seeking Wives
He’s 57 and has never been in a relationship. Now he’s worried that his four nephews who live with him might end up alone – and desperate – just like him. How is China addressing its gender imbalance that has reached epic proportions?

Can A Desert Be Reclaimed For Human Habitation?
Despite horrific sandstorms and arid soil, Han Meifei is among those seeking to rejuvenate the land. His innovative procedures have developed ways of growing plants without water, preventing the dry desert from spreading, and preserving the seeds of plants close to extinction for a greener future.

Researchers Are Sitting On Tech That Could Transform Trees Into Power Generators
This surrealist idyll isn’t too far-fetched, say a team of researchers. They’ve been working to harvest usable electricity from plants by experimenting with the “triboelectric” effect in tree foliage. The phenomenon occurs when certain materials that rub against each are pried apart.

The Cost Of Keeping Singapore Squeaky Clean
Founding father and first Prime Minister Lee Kuan Yew kicked off the Keep Singapore Clean campaign 50 years ago. The aim wasn’t just to make the city more pleasant. A cleaner city, Lee Kuan Yew reasoned, would create a stronger economy.

How To Eat Seafood Responsibly: A Guide From Chef Eric Ripert
In addition to responsibly sourcing fish, Eric Ripert stresses that seeking out freshness and using proper technique will help guarantee success with fish in the home kitchen. Here are a few ways he recommends keeping seafood cookery interesting, delicious, and sustainable.

Highly Secretive Iranian Rebels Are Holed Up in Albania. They Gave Us a Tour.
In a valley in the Albanian countryside, a group of celibate Iranian dissidents have built a vast and tightly guarded barracks that few outsiders have ever entered. Depending on whom you ask, the Mujahedeen Khalq, or People’s Jihadists, are either Iran’s replacement government-in-waiting or a duplicitous terrorist cult.