It is called fixism to doctrine which states that the species are immutable : that is, they have not registered changes since the moment they were created. Fijism, therefore, results opposite to evolutionism .
For the fijismo, once the species were created, they remained almost unchanged despite the passage of time. In fact, the nature in general it is considered as an element that was born almost in its definitive state .
The naturalist Carlos Linnaeus He is pointed out as a pioneer in the impulse of Fiji as a scientific theory. According to this specialist century XVIII , Each species arose separately and in isolation . In this way, Linnaeus ruled out the existence of ancestors in common.
The French Georges Cuvier , meanwhile, boosted the idea of catastrophism , which claimed that the changes that were recorded in the land they were not gradual or occurred because of evolution, but consequences of violent catastrophes. In this sense, Cuvier believed that fossils of species other than the current ones came from extinct animals that had disappeared with the Universal Flood.
This is related to the so-called "vagaries of nature", something that can also be seen in the theory of plastic vis, the supposed shaping force that fueled the creation of fossils. These remains that for some scientists opened the doors to new and more complex perspectives were a real problem for those who refused to believe in evolution, and that is why theories like this emerged, describing bones as mere rocks that appeared in such a way that they seem skeletons .
From the XIX century , the fijismo lost scientific sustenance. The work of Charles Darwin and the advance of the paleontology they showed that the species adapt to the environment and evolve or disappear; its characteristics, therefore, are not fixed. Today, the scientific consensus asserts that, through natural selection , the species are undergoing modifications throughout the successive generations.
In any case, there are still some minority groups that ask that fijismo be taught in educational establishments as a theory as valid as evolutionism. Despite their intentions, they do not get recognition from current scientists, since evolution is the basis of almost all sciences.
As mentioned earlier, the worst enemy of Fiji is the fossil . This way in which the human being began to discover hidden pages of Earth's past gave him the opportunity to think about the paths that nature had taken throughout its history. Although there is more than one theory between the evolutionist and the fixist, in broad strokes these seem to be the two poles towards which thinkers are heading: either living beings go through changes and we adapt biologically or we appear on the planet with a Default and immutable.
It is important to note that the Christian religion has not always supported Fijism as proposed by its promoters; for example, San Agustin and Thomas Aquinas they did not agree with the fact that God had created all the species in a few days, but had given nature a creative power so that throughout history it was giving them lifetime .
Carlos Linnaeus had a very clear goal for his claims: to make evident the greatness of God and the marvelousness of his creations. Besides of developing of the fixism, this naturalist and botanist of Swedish origin also promoted the emergence of modern taxonomy, that is to say, the science used to classify organisms.