A stray dog stands outside the new, giant enclosure that covers devastated reactor number four at the Chernobyl nuclear power plant, Aug. 18, 2017 near Chernobyl, Ukraine. An estimated 900 stray dogs live in the exclusion zone, many of them likely the descendants of dogs left behind following the mass evacuation of residents in the aftermath of the 1986 nuclear disaster at Chernobyl.
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