Neanderthals, Mayans and all sorts of other past peoples appear in [[Jake Ransom and the Howling Sphinx by James Rollins]], which is a super adventure. [[Promise of the Wolves (Wolf Chronicles 1) by Dorothy Hearst|Promise of the Wolves by Dorothy Hearst]] goes back 14,000 years to look at the domestication of wolves and the story of how dogs became man's best friend.