Even if you’re a Strava refuser or a smartwatch shunner, the purest of purist runners invariably have an ideal finish time in their heads when they arrive at a start line. If you’re going to hit or go ...

SRP crews lowered a 650-pound "flume" in a remote canyon south of Williams, with a goal of more accurately measuring the Verde River's flow.

This tried-and-true method is one of the best ways to study so you actually retain information—and it's not hard to do. Here's what you need to know.

How do plants breathe? When do they open and close the tiny pores on their leaves, and what does this mean for their water ...