Why Do Rivers Curve?

by MinuteEarth

What do Martians call an oxbow lake? Wait, what is an oxbow lake? That's when a river's path bends or "meanders" slightly and, over long time periods, the curve gets so big that the river takes a shortcut back into itself and leaves a crescent-shaped, oxbow lake.
Take Action: Learn all about rivers, oxbow lakes and other amazing stream and river information from the USGS. http://water.usgs.gov/edu/earthrivers.html

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