Want to know how hundreds of millions of birds die every year? Just look out the window.

From the near-extinction of bison to “panda diplomacy": the story of our National Zoo

How often do you think about the Roman Empire?

The Colorado River is disappearing – can one Gen Z dealmaker help save it?

From Napoleon's cutlery to the WWII occupation of Greenland, we dig up the hidden history behind the most abundant metal in the Earth's crust.

What happens when the growing threat of landslides collides with a housing crisis?

If we’re in the middle of a mass extinction, shouldn’t more species be going extinct?

Some social media influencers tout the all-meat diet and say that plants are making people sick. The science says otherwise.

Is hemp overhyped? Or is it a planet-saving super plant?

In which we consider Flaco the Eurasian eagle owl, impulse goat purchases, and a big night for salamanders. Plus, our host graces us with a rendition of a Tom Waits song.

The SEC is trying to make sustainable investing easier. But can you save for retirement in a way that’s both good for the planet… and good for your pocketbook?

Host Nate Hegyi looks at the hidden history behind the world’s first radioactive fallout.

We gather tips on how to manipulate — er, inspire kids into liking the outdoors, and stories of what happens when it doesn’t work out.

Grass is the sand-killer.

Producer Felix Poon exits his comfort zone and picks up a crossbow, to find out if one weekend in the Catskills can convert him into a dedicated hunter.

Who should wear the crown of GSOAT (Greatest Species of All Time), and are humans even in the running?

Life on a scientific mission to one of Antarctica’s most remote glaciers.

What’s the greenest way to die: casket, cremation, or compost?

Roses are red, violets are… red-absorbing? We tackle your questions on the illusory essence of nature’s most elusive color.

What happens when a symbol of the American West is also a nuisance?

Thought these frequently frowned-upon birds were boring, metropolitan pests? Think again.

In 1994, the world’s first oat milk company was born in Sweden. Three decades later, Oatly is on a high-stakes mission to defeat the dairy industry.

How game designers created the 'natural world' of Skyrim

The weather outside is frightful, but don’t let that stop you from having a wonderful winter.

‘Yellowstone’ is one of the most popular television shows in the country. What does it get right – and wrong – about the people and landscapes of the American West?