Why do leaves change colors in the fall?

Cannibalism is the macabre practice of eating other humans. But sometimes, people have no choice if they want to survive. It's called survival cannibalism and it tastes like chicken. Learn more about...

11 Touko 201641min

Snake handling ranges from professional snake milkers for antivenin to religious handlers who tend to get bitten and sometimes die from it. Either way, it can be a dangerous business. Learn all about ...

9 Touko 201654min

In 1943 Swiss chemist Albert Hofman discovered he'd created what may be the most potent hallucinogen known to humankind. Then he took a bike ride. Learn about the chemistry, neurology, history and cul...

5 Touko 20161h 42min

Between 2 to 20 million years ago, the biggest shark with perhaps the most devastating bite of any animal ever ruled the oceans with an iron jaw. Despite its fierceness, megalodon went extinct while o...

3 Touko 201632min

America had already used two nuclear bombs to devastating effect when researchers thought "maybe we can use these bombs to dig big holes instead." That's right, atom bombs to replace bulldozers. And i...

28 Huhti 201643min

Tornadoes can make mincemeat out of houses, people, cars, you name it. So do you know what to do - and what not to do - when there's one headed your way? Learn more about your ad-choices at https://w...

25 Huhti 201643min

There's a curious puzzle unanswered by the theory of evolution: why do some animals give up their chance to reproduce to help others reproduce instead? For decades biologists have suggested family was...

21 Huhti 201632min

The people of Flint, MI were horrified to find their drinking water was poisoned with lead. As we learn more about lead's effects and realize how persistent it is, the more worrying it becomes. What m...

19 Huhti 201649min