Any of you ever heard of an author named Doug Peacock?

Latest book:
In The Shadow Of The Sabertooth. You want the revised edition; when the earlier edition went to press, the author was hospitalized between hip-replacement-replacement (said the same thing twice for a reason) and open-heart surgery, so the editing was not up to his standards. Hence the need for revision.

No, not changing the subject. Peacock posits a connection between megafauna in another epoch, and global warming.

Sorry, links are beyond me though.