Samples taken from cubs frozen in permafrost for at least 12,000 years.
Palaeontologist says osteoporosis could have been major contributor, brought on by a lack of minerals in habitat from climate change.
Young boy was laid to rest all alone with two iron knives, his feet trampling on reindeer bones, wearing elaborate headdress decorated with iron rings.
Scientists split after expedition to see the '100 million year old reptile' in Yamal.
Prehistoric Siberians lived in Denisova Cave earlier than scientists realised - new claim based on state-of-the-art technology.
New find expected to 'change our understanding of the evolution of animals'.
Aged approximately 45,000 years, this might be the world’s oldest animal statuette.
Complete with shield and intimidating helmet, President will receive gift from Novosibirsk State University in recognition of his 'iron wolf' character.
DNA of a fossil tooth found in the Altai Mountains shows early man and his best friend were together 19,000 years earlier than previously understood.
Pipeline will go through pristine Altai Mountains in supply route seen as economically vital by Kremlin.