↣ Darwin's contributions to science

Charles Darwin's main contributions to the world of biology and science, in general are:

1- Species do not remain static over time, they evolve:

It had always been thought that the species we see now were the same since the appearance of life. However, Darwin showed that organisms do not stop changing, so species are dynamic. It was simply a problem of perspective, since evolution is a process that requires millions of years to give perceptible changes and humanity has been on earth for less than 200,000 years, so we haven't had time to appreciate the phenomenon of evolution in the rest of the species of animals.

2- Natural selection is the mechanism that allows evolution: 

After showing that species change and differ from one another the works, Darvin had to demonstrate what was that force that led to it, because there had to be a mechanism to regulate it. This mechanism is the natural selection.

The theory of natural selection explains why living things evolve.

Let us imagine that we leave a brown bear in the snow and another that, for some genetic defect, is somewhat lighter than normal. what will happen? The grizzly will have little chance of hunting undetected, while the lighter coat, you'll have it a little easier and eat more.

By eating more, you will have more energy and live longer, so you will have more play options. The brown bear will have, for example, two children.

The clear, five. What happens is that now in the population there will be more bears clear. Those five will also reproduce more than the other two pardos, for which in the end, from generation to generation, the proportion of light bears will be higher.

Also, among those light bears, there will be some whiter than others.

The whiter they are, the more likely they are to hunt than the other less whites. Thus, over time, evolution refines more and more and leaves a population perfectly adapted to the characteristics of the environment.

In short, the theory of natural selection posits that if you are not fit to the middle, you will die before those who are better adapted, so the population of that species will tend to have the characteristics of the most genetically benefited speaking.

3- All living beings start from a common ancestor:

Another of Darwin's great contributions derived from his research on the evolution of species and is related to the origin of life.

Darwin observed that all the animals he investigated had some characteristics in common, which were more striking as they were closer they were in space. As further away, fewer features they shared. This led Darwin to hypothesize that all organisms start from a common ancestor that had been differentiated into different species depending on the environment in which the organisms inhabited. To this day, this It is confirmed.

4- End of anthropocentrism:

Darwin put an end to the idea that humans have something special inside the universe. He said that we were just another animal that the laws of the Natural selection affects him like all other living things. This caused horror in the church, because it was the previous step to demonstrate that humans we come from the monkey, something that today is perfectly accepted but that in its day was a real revolution.