I am very suspicious of the giraffe's long neck. Well, more to the point, I am suspicious of our explanations of how it got that way. In fact, to get down to the nitty-gritty, I am suspicious of the theory of evolution.
Just to make sure you know where I'm coming from, I do not subscribe to any organized religious faith or belief. In particular, I am not a fundamentalist Christian who rejects evolution as contrary to the "Word of God." On the contrary, I believe that evolution of living forms is well established both in the geological record and in our modern experience. But what is not well established, at least in my mind, is the theory of the mechanism by which life evolves.
My biology teacher had discussed that the neck of the giraffe grew longer and longer over many generations because to do so was an advantage in obtaining food from the tops of trees. It was an example of "survival of the fittest" and evolution through "natural selection." Since there are still a lot of herbivores around with short necks, why are there not giraffes with short necks? After all, it is obvious that it is not so much the survival of the fittest as it is the survival of the fit. Even a lot of unfit creatures manage to struggle along, reproducing their own just in time and in just enough numbers to avoid extinction, but only barely so. Along that line, have you ever seen a giraffe drink from a stream? Talk about leg splits. So ungainly, I'd hardly call that an advantage. It seems to me that it's far more likely that giraffe has to eat leaves from the tops of trees because its neck is so long, rather than its neck grew long just so that it could eat from the tops of trees.
I continued to puzzle over the puzzle. I had lots of questions. If suddenly there appeared among a herd of normal-necked giraffes, one with a mutation-induced extraordinarily long neck, don't you think it would have been ejected from the herd post haste? Suppose it were a guy giraffe. Would any sensible girl...