DNA tests on the 18,000-year-old Siberian canine cannot define if it's a wolf or a dog.
New find in 'perfect condition' just two metres from 2011 discovery of 12,400 year old dog.
Cloning hope after autopsy of 'pet' frozen in permafrost since pre-historic times.
12,000-year-old remains of puppy were discovered perfectly intact sealed inside permafrost.