In the first step toward understanding how dogs—and perhaps humans—might adapt to intense environmental pressures such as exposure to radiation, heavy metals, or toxic chemicals, researchers have found that two groups of dogs living within the Chernobyl Exclusion Zone, one at the site of the former Chernobyl reactors, and another 16.5 km away in Chernobyl City, showed significant genetic differences between them.
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Source: Phys.org