A 'blood river' showed up in a Siberian 'dead zone' twice the size of Rhode Island - and no one knows why
Sep 13, 2016, 01:06 IST
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The Daldykan River in Russia, which is located all the way above the Arctic Circle, is normally, like most bodies of water, a greenish blue.
About two weeks ago, it turned bright red.
No one is sure why. But there are some theories.