Four decades after the world’s worst nuclear disaster, something weird—but wonderful—is happening inside the Chernobyl Exclusion Zone: the dogs that roam the radioactive area are rapidly evolving. Watch Pop Mech editors Andrew Daniels and John Gilpatrick explore the strange case of the Chernobyl dogs, who descend from those canines abandoned during the April 26, 1986 evacuation. Despite dealing with extremely cold temperatures, food scarcity, and long-term radiation exposure, the Chernobyl dogs aren’t just surviving—they’re thriving. Related Story Inside the Chernobyl Dogs’ Strange Genetic ChangesCould the Chernobyl dogs help humans adapt to harsh environments, like, say, the surface of Mars or deep space? Watch the full episode above, and find more installments of the Astounding Pop Mech Show on PopularMechanics.com.