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

Anti-viral drug used to beat avian and swine flu.

Pipes are built over bulging and unstable Arctic pingos prone to violent eruptions caused by 'thawing methane gas', as seen twice on the Yamal peninsula this year.

Destruction of trees by flames could see Batagai Depression ‘rapidly enlarge’ while remote local settlements also threatened.

Scientist thought he had stumbled upon an unusual stone, only for tests to show he had unearthed major dinosaur find.

Same phenomenon of discharge of gas hydrates 'led to crater formation in Russia and disappearance of ships in Atlantic'.

Call to locals and tourists to aid experts counter the green gunge 'polluting' world's deepest lake.

Cruel joke can turn deadly for predator now too visible to both prey and poachers.

Scientists disclose vital statistics of 'Sibirosaurus', 20 metres (66 ft) in length, able to stand tall on hind legs.

Experts crack prehistoric mystery over extinct babies preserved in permafrost since Ice Age, and reveal the VERY surprising colour of this 'tigerlion' species.