It was amazingly well preserved even before they cleaned it up. [When we found it] we didn’t know how old it was. They said they found it in the permafrost but it happens that things get frozen in there that are only a few hundred years old or even a few decades.

We were excited about it but we had a healthy dose of scepticism until we radiocarbon dated it. Obviously when we got the results that it was 18,000 years old, that changes everything. When we got that result it was amazing. 18,000 years ago is an interesting time period where we think a lot of stuff is happening with both wolves and dogs genetically.

We cannot separate it from a modern wolf, Pleistocene [Ice Age] wolf or dog. One reason why it might be difficult to say is because this one is right there at the divergence time. So it could be a very early modern wolf or very early dog or a late Pleistocene wolf.