Satellites show giant hole ringed by 20 'baby craters'.
The prospects of a cloned mammoth is nearer after the sensational discovery of 'living cells' from the ancient creatures in northern Siberia.
Biggest and 'best' in Russia, it is more like a 'reserve' than a traditional zoo.
Remarkable images show a test tube blood sample from a female of the long-extinct species.
12,000-year-old remains of puppy were discovered perfectly intact sealed inside permafrost.
Scientists get inside a woolly mammoth's head to understand behaviour of the extinct species.
The $27-million Snezhinka (Snowflake) is seen as a future international science hub for biotech, robotic and AI-driven projects.
These extraordinary pictures give graphic new evidence of climate change.