Elizabeth Ver Hoeve
February 16, 2007
To Be Significant
"To be fit," Ernst Mayr proclaims in his book, What Evolution Is, "means to possess certain properties that increase the probability of survival" (118). Those individuals with the most desired characteristics for their specific environment have the best chance at surviving. So if survivability is measured by, "the existence of certain survival-favoring attributes," how does an organism demonstrate its potential (Mayr 118)? The most prominent indication of an organism's survival capability is its ability to reproduce. Reproduction - the transfer of genetic material from parent to offspring - is crucial in the process of evolution. In order for a population to survive, each generation must produce a subsequent number of offspring. This basic survival requirement is unmistakably essential in the case of say, a population of penguins. Their purpose for selecting a mate and making the treacherous journey across miles and miles of ice and snow is to reproduce and create a future generation of penguins. What makes a penguin evolutionarily significant is its ability to reproduce. But can this clear-cut rationale be applicable to all species of organisms? Humans are substantially different from penguins. We have evolved into higher functioning organisms, developed complex societies, and invented medicine and technology that has potentially allowed us to side-step the force of natural selection altogether. Yet, when asked in class whether or not individuals who choose not to reproduce are evolutionarily significant, the majority response indicated that, evolutionarily speaking, such individuals had no purpose. No purpose? How could that be? Could someone actually imply that if a person doesn't pass on his or her genes, that he/she is simply insignificant? After close attention to human lifestyle, observations associated with this issue seem to point us in the opposite direction. In fact, through the examination of overpopulation, policymaking, and the spread of ideas to future generations, it seems clear that "non-reproducers" are not only significant, they are necessary contributors to the process of evolution.