Scientists remain confident of one day bringing back the beast to roam again in Siberia.
The unique scientific vault will safely store ancient remains at temperatures as low as minus 24C.
The unique discovery was three or four years old when it died at least 20,000 years ago.
But is climate change to blame, or local officials who went on vacation instead of fighting fires?
Alexander Smelov, 55, killed in his office in Yakutsk.
The young beast's head was resting on a paw in frozen ground for up to 50,000 years, shows amazing first picture.
The Popigai reserves are enough to keep the planet in diamonds for 3,000 years.
Sightings of 'primeval monsters' in Siberia's Lake Labynkyr were made before 'Nessie' was spotted in Scotland.
Birds that Vladimir Putin tried to save have 'almost disappeared' due to illegal shooting.