An expedition to one of Eurasia's northernmost caves unlocks secrets that might help explain the extinction of mammoths.
Scholars from 20 countries to converge on Siberian Psittacosaurus necropolis to understand if deep past has lessons for future.
Is increased tourism, or a normal natural cycle, to blame for the rapid growth of spirogyra to 50% of the coastline?
A study suggests cannabis, magic mushrooms and ecstatic dancing was used as ancient anaesthetic.
Permafrost remains of long-gone woolly rhinos, mammoths and cave lions bring intriguing scientific breakthrough.