Alleged poachers detained after killing animal on Vaygach Island, amid fears up to 15 are illegally shot each year.
But notorious 'chessboard murderer' was 'ditched by his prospective bride' though he refuses to believe he was dumped.
The lake's level is falling, and Mongolian hydro plans would disrupt inflows, and could cause a 'tsunami' of water, say campaigners.
Rare historic pictures show Russia's last tsar as the first builder of the Trans-Siberian Railway 125 years ago this month.
Tuim Hole first appeared 62 years ago and has sheer 120 metre cliffs reaching down to its deep turquoise waters.
Pictures show child from Middle Ages as he is unwrapped after his remains were 'accidentally preserved' close to Arctic.