New 'bear security rules' follow mailings of humans from hungry animal in remote towns and villages.
Possible route could see 400km/hour bullet train pass through heart of Siberia and Altai region with stops in major cities.
Nicknamed Forrest Gump, he completes a 9,905 kilometre odyssey braving temperatures as low as minus 48C on his 18 month adventure.
Mercy mission brings stores for Agafya Lykova to help her survive the winter in her remote retreat.
Exclusive pictures show autopsy on a four year old bison preserved in ice since ancient times.
Karina became the symbol of resilience and hope when - aged only 4 - she survived 12 days in taiga of Yakutia.
Unique physiology of people in Altai mountain region means only they can perform the melodies that date back centuries.
New tourism offices planned across China as government eyes up five-fold increase in visitors crossing the border.