The bison - or buffalo - are under special protection from hunters amid rising concern over wolf attacks.
Olga Kurochkina earlier appealed to Vladimir Putin to force the authorities to check if her husband was killed by cannibals.
New study predicts potential crises for herds after examining 81,000 animal losses after Yamal was carpeted with winter-long impenetrable ice.
Macabre cargo including 37 elk lips impounded after FSB tip-off. CAUTION: STRONG IMAGES
A frantic search for a missing nine year boy ended after he was found hidden inside a packing box in his own apartment in Omsk.