Starla Grant: When Darwin said "fittest," he didn't necessarily mean the strongest, or the most intelligent, or any one trait. He merely meant those organisms most well-suited to their environments. Now, we humans, we think we're more fit, more evolved, because we're smarter. But we're neophytes. We've only been on this Earth two million years, give or take. The cockroach, that fellow's been around 350 million years. So, based on that, which of us is the more successful species?
Starla Grant : When Darwin said "fittest," he didn't necessarily mean the strongest, or the most intelligent, or any one trait. He merely meant those organisms most well-suited to their environments. Now, we humans, we think we're more fit, more evolved, because we're smarter. But we're neophytes. We've only been on this Earth two million years, give or take. The cockroach, that fellow's been around 350 million years. So, based on that, which of us is the more successful species?
http://www.moviequotedb.com/movies/slither/quote_135290.html