When you hike nearly three miles on a dirt road, scramble up a boulder-strewn creek for another mile and think about the ugliness of man on the way back you’ve had one messed up day. Welcome to my ...

A Faith Fitzpatrick, research hydrologist at the U.S. Geological Survey's Wisconsin Water Science Center: It basically takes four things to make a waterfall. The first one is, of course, water. Second ...

Learn how fish in the Democratic Republic of the Congo scale a near-vertical waterfall using microscopic hooks.

It basically takes four things to make a waterfall. The first one is, of course, water. Second, there needs to be a land surface that’s made out of different rock types or sediment. Third, that land ...