Given that animal grieve and mourn their dead [0], cows have best friends [1], or many species of animals play [2], among many other things, assuming that cavemen lives is only "culinary" and "carnal" pleasure means humans not long ago ("cavemen") had internal lives far, far simpler than what many animal species experience.

[0] https://www.smithsonianmag.com/science-nature/do-animals-exp...

[1] https://www.theguardian.com/commentisfree/2011/jul/07/cows-b...

[2] https://greatergood.berkeley.edu/article/item/games_animals_...