The DNA study was split into two papers since Russian and Ukrainian researchers couldn't co-author, Nature reported.

In many parts of Russia’s North Caucasus region, Muslim women often lose custody of their children if they divorce, remarry, or become widows. All four fighters competing for world titles at UFC ...

AMMAN — In the middle of the 19th century, the northern Caucasus was a battlefield between the Russian and the Ottoman empires. The mountainous region between the Black Sea and the Caspian Sea ...

Rather, it has increasingly spread to other areas of the Northern Caucasus. Russia contends that its operations in Chechnya are its contribution to the global campaign against terrorism.