Scientists say numbers in Lake Baikal reaching critical levels and say new commercial businesses could safeguard their future.
Officially Colin Madsen, 25, died from hypothermia on a hiking trip in Buryatia, but his family are convinced he was killed.
Adventurers from Irkutsk's A1team spruce up the giant lake's shoreline, before showcasing its stunning scenery - and ancient rock paintings.
Is it a case of 'space race sabotage' as suspicion falls on Middle Eastern group with pages blanked out by Arabic writing stating 'Peace Be With You'?
The ancient mummy of a mysterious young woman, known as the Ukok Princess, is finally returning home to the Altai Republic this month.
Six holy men summon players' ancestors, begging for support in the game against Spain.
Scientist warns of 'environmental disaster' due to 'irreversible' pollution in world's deepest and oldest lake.
Marina Fokina, 34, screamed at beast: 'Eat me but don't touch my child.'
The predator ran along the shore then swam out towards the boat, but posed no threat when killed with a single rifle shot to the head.
Roofing ripped, advertising banners torn down, and students knocked over by the force of the gales.