Clarification:
This image was posted at the request of the listeners because in the interview James had given his opinion about it after Robert McDonald showed it to James earlier on his Facebook page as a curious find. I do not know who produced that snippet because it only shows part of what in reality is a very odd sculpture by the artist Patricia Piccinini and I assume this image snippet was already going around the web when Robert presented it. Be that as it may, this image is showing remarkable features in the realization of details, like the feet shown here, that are indeed showing the artists conception of how feet of an early hominid, developed from apes, could have looked like.
James assumed this to be an image of probably an Neanderthal's legs and feet and a bottom with a tiny tail. This was James best guess for what it could be, assuming that might be a leaked secret image of a living being that like the extinct animals presented by Rob, may have materialized somewhere else in a similar fashion.
James has never stated that that is what it is, no, this was just a guess and wasn't claimed as anything else.
Shuny