The 50,000-year-old remains of a baby mammoth uncovered by melting permafrost have been unveiled to the public by researchers in Russia's Siberia region who call it the best-preserved mammoth body ever found.

The mammoth, a female calf nicknamed Yana, is reportedly one of just seven mammoth carcasses that have been recovered across the world

Researchers in Siberia are conducting tests on a juvenile mammoth whose remarkably well-preserved remains were discovered in thawing permafrost after more than 50,000 years.