Discursive essay on evolution
The argument of whether or not evolution has occurred and still is occurring is a very controversial issue. Those who don’t believe in it tend to take a religious perspective and believe that the world and everything in it was made by a “Creator”, and those who believe in the theory of evolution generally do so upon grounds of scientific evidence. Evolution is a very complicated issue. There is what is known as micro-evolution, which is known as adaptation, there are slight variations in the species, but at any stage during the process it is still a member of the same family and species. This is known to be true, what the argument is about is macro-evolution. Macro-evolution is on a much bigger scale, For example, from a fish to a dog. Evolutionists believe that if micro-evolution can occur why can’t it go further and change the species altogether.
The “father” of evolution was a man called Charles Darwin. Around 150 years ago, he shocked the world when he wrote a book suggesting that humans were related to animals. Today, Darwin’s idea still forms the basis of what is known as “The Theory of Evolution”. The word “evolution”, is used to describe the way in which living thing evolve or change, given time. The theory is comprised of three major sections. The first of which is called variation. All living things vary in size, shape, strength and colour and character. No two living things are exactly the same; for example, imagine some green frogs living and breeding in green surroundings. Most of the offspring inherit their parents’ green colouring, but some due to natural selection have different colours. The next part of the theory is how these adaptations affect a living things ability to survive and breed. This may be a thick coat of fur to help the animal survive the winter or being brightly coloured to attract a mate; the coloured frogs show up on the green grass and are soon eaten. Over time, the environment changes colour from green to yellow as the grass dies. The green frogs show up on the sand and are eaten. The last part of the theory is called inheritance. The adaptations that help a living thing to survive and breed can be inherited by its offspring . If this happens, they too will stand a better chance of survival; the surviving frogs pass their colour onto their offspring, so that they too stand a good chance of survival. Over time the better adapted plants and animals flourish as the less well-adapted plants and animals flourish. Many people believe that this process of evolution has led to the millions of plants and animals that inhabit the world today. Now the population of frogs is mainly yellow. A new species has “evolved”.
