First there were bright blue stray dogs, then bright green ones. Russia is trying to solve the mystery of these dogs, which appeared in industrial areas hundreds of miles apart. The dogs with blue ...

But as in the Dzerzhinsk case, the dogs appear quite healthy and friendly. Whatever caused the bright-coloured fur, the cases highlight the continuing risk from chemical pollution in Russia ...

Miraculously, the wild dogs are still able to breed and endure extreme winters while relying on scraps from tourists who are warned not to touch them. Researchers say humans can learn from the ...