Science & Nature

The hypothesis: Trees improve people's health. The experiment: Remove 100 million trees in the eastern and midwestern U.S. over the course of 10 years and see what happens. What happened: People died. Is it that simple? Our readers said, no. So we asked one of the authors of the study to address their concerns. Continue

Great Zebra Exodus Filmmaker, Adrian Bailey, spent eight months and traveled over 7,5000 miles documenting on the plains zebras of Botswana. Bailey answers questions on the African equid, their impressive migration habits, and the most traumatic event he's witnessed in two decades of filming in the wild. Continue

A plane's probably not going to crash into your living room. But watch out for your shower, diet and spouse. Continue

Singapore's skyline is composed mostly of skyscrapers, so it's no wonder residents are looking up when they're considering places to grow fruits and vegetables in this high-density Asian island. Continue

Deep, immersive reading offers far more benefits than just pleasure. Continue

A new study finds that the lotions ward off wrinkles, but to prevent cancer, read the label first. Continue

In Costa Rica, birds, bats and bees serve vital roles in controlling pests and pollinating crops. Now, researchers are measuring the contributions of these critters to encourage farmers to move away from the single-crop model and toward biodiversity. Continue

The chairman of Dole Foods plans to live to 125 -- and he believes you can, too. Continue