Final answer:
Humans exhibit civilization through shared morality and the use of language, but they can also display primal instincts under certain conditions, showing both civilized and animalistic aspects.
Step-by-step explanation:
Considering whether humans are truly civilized in light of the story 'The Most Dangerous Game,' one could argue that humans are civilized but retain the capability to revert to primal behavior. This is evident as humans everywhere demonstrate a sense of morality that differs in specifics but is similar in purpose, contributing to the sustainability of their communities and societies at large. It's the ability to use language and reason that often distinguishes us from animals, yet humans can still display aggressive, primal instincts similar to animals when societal structures breakdown or in situations that call for survival.
In conclusion, the claim that humans are not fundamentally different from animals presents a dichotomy wherein humans, while capable of advanced moral and ethical reasoning, also possess the inherent potential for brutality reflective of our primal ancestry. This dual nature suggests that civilization is a fragile construct, capable of regressing under certain conditions.