On a lighter note today, let's look at fictional alien life forms, and how the principles of evolution apply, as far as their physical appearance and behaviours are concerned. For those of you who have watched the films "Alien" and "Predator", you will be familiar with these characters, but if you haven't, don't worry; their pics are below. The first one to look at is the alien. This might look odd, but in fact this is the young form of the alien. It spawns from a plant-like creature, and it has evolved to jump on people's faces, insert themselves into their digestive tract, where they grow and then escape through the chest, killing them. The only explanation for this adaptation is that at some point in the past the aliens used some other host for their development, which was similar to humans. Otherwise, they have adapted very quickly to humans' advancement into outer space. (The film is set in the distant future when humans are colonising the
Insights into the applications of evolutionary theory to humans today. +more!