In this photo taken on Sunday, March 15, 2015, Nenets children attend the Reindeer Herder's Day holiday in the city of Nadym, in Yamal-Nenets Region, 2500 kilometers (about 1553 miles) northeast of Moscow, Russia. For the indigenous nomadic Nenets people, the Reindeer Herder's Day offers a chance to show their prowess in wrestling, high jumps and other traditional local sports, but, above all, reindeer races. (AP Photo/Dmitry Lovetsky), APTOPIX