Blue dogs were spotted near an abandoned chemical plant at Dzerzhinsk in Russia's Nizhny Novgorod region.strange colouring may caused by chemical waste such as copper sulphate.vibrant blue coats not a happy one.much concerned issue. it may cause health issues to them#saveanimals pic.twitter.com/USBGSkKupB

— priya balu (@priyabalu_2000) February 14, 2021