[https://www.sciencealert.com/more-than-half-of-the-world-s-rivers-aren-t-flowing-all-the-time?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencealert-latestnews+%28ScienceAlert-Latest%29](https://www.sciencealert.com/more-than-half-of-the-world-s-rivers-aren-t-flowing-all-the-time?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencealert-latestnews+%28ScienceAlert-Latest%29) >"Our traditional idea of a river, an endlessly flowing stream of water, needs a rethink, scientists argue in a new study."