Sightings of 'primeval monsters' in Siberia's Lake Labynkyr were made before 'Nessie' was spotted in Scotland.

New expedition in Laptev Sea suggests increase in the rate of underwater permafrost degradation.

Scientist warns of 'environmental disaster' due to 'irreversible' pollution in world's deepest and oldest lake.

'Sensational' discovery in Denisova Cave is at least 50,000 years old BUT it wasn't made by Homo sapiens.

Sunduki is called the Siberian Stonehenge, yet its site is older than the British standing stones, and arguably 'more mysterious'.

Ancient 'wealthy' young woman was found laid to rest with her horse and weapons by workers who accidentally dug up her burial mound.

200 metres wide thermocirque seen weeks after scientists find funnel in the Yamal peninsula, caused by build up of methane.

After archeologists dug up the ancient mummy - preserved in permafrost - natural disasters were unleashed in Siberia, court told.

Bulging bumps in the Yamal and Gydan peninsulas believed to be caused by thawing permafrost releasing methane.

Klyuchevskaya Sopka's crater fills with lava amid new volcanic activity.