The mother Alexei Navalny, the Russian opposition leader who died at a remote Arctic penal colony, has sent a video message to Russian President Vladimir Putin pleading for his body to be released. In the one-minute video, Lyudmila Navalnaya stands outside the “Polar Wolf” prison camp where her son had been jailed while serving a decades-long sentence. Russian authorities said the 47-year-old suddenly died there on Friday while taking a walk. “I appeal to you Vladimir Putin, because the solution to this problem depends only on you,” Navalnaya says. “Let me see my son. I demand that Alexei’s bo…