Water shortages in US West likelier than previously thought

There's a chance water levels in the two largest man-made reservoirs in the United States could dip to critically low levels by 2025, jeopardizing the steady flow of Colorado River water that more than 40 million people rely ...

Why are there no animals with three legs?

If "Why?" is the first question in science, "Why not?" must be a close second. Sometimes it's worth thinking about why something does not exist.

Put off by US, Chinese students eye other universities

Caught in the crossfire of the US-China trade war, Chinese students are looking for alternative study destinations—threatening to turn off an important source of revenue for American universities.

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