And that's enough to get a new species out of it?

Yeah.

So that they think is...

Well, there is quite a debate, isn't there, Chris, about what this actual species is.

They thought it was heidelbergensis, 'cause it's around the right time for heidelbergensis, right place.

All good.

But Chris has already mentioned this site in Spain, Atapuerca, where a lot of remains have come up from this site, and they had a huge amount of remains of heidelbergensis that they thought were from this site.

[laughs]

But Selina, what other information about this dog have you been able to gather, have you been able to ascertain from the surviving mandible?

So yeah, we sort of like hinted at this a little bit earlier, and this, this is actually the isotopic data that we used to look at the wolf.

And as William says, this is about-This tells us about diet.

It, y- we've used it a lot more in the past in sort of like archeological studies to assess past human diets, because as we said, this is looking at those differences in carbon and nitrogen.

Nitrogen in particular tells us about tropic level, so the position that an animal occupies in the food chain.

So like a high-level carnivore versus a mid-level omnivore versus a low-level sort of herbivore.

So y- yeah.

What has this new discovery at Gough's Cave, what would you say it's revealed? What new evidence, what new information has it revealed about people coming back to Britain at the end of the Ice Age some 15,000 years ago? What new information has it revealed?