Model Amina Karat, 34, poses on the Saamys-Kumaga sands in Yakutia.

Natural causes, or linked to oil and gas exploitation?

Shocking puce water as nearby nickel processing plant says cause is decades of contamination in Soviet times which company is working to overcome.

Mummified archer turns up in remote museum after locals refused to hand him over to the Hermitage in St Petersburg.

Image goes on display at new Tobolsk museum dedicated to the exile of Nikolai II and family shortly before they were shot.

It now seems likely in a matter of years; before this, the first bison since their extinction 10,000 years ago will be re-introduced.