Maia Stern

NPR / YouTube

When Nalini Nadkarni was a young scientist in the 1980s, she wanted to study the canopy – the part of the trees just above the forest floor to the very top branches.

Volcanoes have been crucial to life on earth. Oozing lava helped form our planet's land masses. Gases from volcanoes helped create our atmosphere. But despite the growing field of volcanology, there's still a lot we don't understand about volcanic eruptions.

That's partly because volcanoes aren't easy to study. Getting the right equipment into remote locations under unpredictable circumstances can be difficult. More important, studying active volcanos can be dangerous.

Not seeing the video? Click here.

The first insect that Pascal Baudar ever tried eating was an ant he found in his kitchen. The verdict? "It tasted like some kind of chemical," says Baudar.

Most people would have probably given up on the bug-eating experiments right there. But Baudar? He's made it part of his life's calling.

Not seeing the video? Click here.

Kirk Lombard is a firm believer that one of the best ways to show your love for the sea is to harvest and eat its bounty — responsibly.

Lombard is an avid fisherman and fishmonger based in San Francisco. He runs the Sea Forager tours along the coast, teaching locals how to sustainably fish and forage for their own dinner from the ocean.

Some may think of dandelions as just unwanted weeds, but expert forager and nutritionist Debbie Naha says "a weed is just a plant growing where you don't want it to."

Naha loves to collect and eat dandelions when they bloom in the spring and again in early fall, when the days begin to shorten.