Have you seen any Facebook posts recently from a friend of yours who is crazy about Crossfit and the Paleo or “caveman” diet the group of hardcore fitness fanatics espouses to? Thanks to a recent archeological excavation outside Paris, we may now have a better understanding of what this caveman diet actually consisted of.

French researchers with the National Institute for Preventive Archaeological Research have unearthed a nearly perfect woolly mammoth skeleton and flint spearheads used by Neanderthals. The scientists believe the Neanderthals were likely scavenging meat from the mammoth and that they probably didn’t kill it themselves, given the small size of the spearheads, according to ABC News.

“We hypothesize that the Neanderthals came to remove pieces of meat from the carcass,” one of the scientists told the U.K.’s Guardian newspaper, which translated their French into English.

While the mammoth skeleton’s discovery in France is extremely rare in itself, what is even more rare is the spear artifacts buried with it, which scientists believe will give them a better understanding of how Neanderthals coexisted with the huge animal.

“The presence of these objects from the Lithic stage [over 10,000 years ago] will propel us to better understand the possible actions by humans on this animal,” one of the scientists said in the video below. “This is very rare. It’s already rare to find such a complete skeleton–but to also be able to link Lithic objects to such a skeleton is even rarer.”

Given that the Neanderthals were likely acting as scavengers instead of hunters, we hope that our Crossfit friends don’t start getting any harebrained ideas about where they should be getting their meat. Instead, they should probably just stick to their Viking hash and almond-flour muffins.