|01 micro and macro evolution:|
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There is not a single demonstrable example of macroevolution. Lined up microevolution does not result in macroevolution, because no new organs, structures and functions arise and no increase in corresponding information takes place in the genetic material of the living being. In addition, the microevolution observed today is sometimes 10,000 to 10 million times faster than is generally deduced from fossils.
There are indeed developments, genetic changes in the individual and in the succession of generations. Good examples of this are breed formation within a biological species. Hundreds of dog breeds - from the Pekingese to the St. Bernard - have emerged from the species gray wolf (Canis lupus). However, a dog remains a dog. Here is a contribution to the Differentiation between microevolution and macroevolution.
A great variability is observed within a bandwidth not exceeded. A broad breed development took place especially in domestic animals. Here, humans have collected mutations, crossed them with one another and selected them according to their wishes. For example, the species of rock pigeon (Columba livia), with which Charles Darwin also worked intensively, was broken down into over a thousand breeds by breeders.
|During his research trip to the Galapagos Islands, Darwin collected specimens from various finches. A remarkable number of finch species are found on these Pacific islands (a total of 13 species are distinguished, which differ mainly in body size and in the shape and size of the beak). Often these Darwin's finches are cited as evidence of evolution in general, although it is undisputed that the changes in these birds are in the realm of microevolution. These various forms are still finches and will continue to be finches (1).|
Micro & macro evolution
According to Darwin's doctrine of the descent of species should Living beings in their biological history can produce completely new, previously non-existent complex blueprints, organs and functions through spontaneous events in their genetic apparatus (mutation, selection, gene transfer, combination of gene segments, gene duplication and other factors). In this sense, the term "higher development" is usually used.
In the case of an assumed higher development, such as that of mammals from reptiles, structures such as hair, mammary glands, devices for temperature regulation and everything that otherwise distinguishes mammals from reptiles would have to arise. But:
These supposedly newly created structures differ from "old" structures not only in one gene, but mostly in many genes, the spatial and temporal activity patterns of which must be sensibly coordinated. In macroevolutionary processes, this should also be the case with every single (!) Intermediate form. The orchestra of genes must always be right.
What is evolution
In the Dutch Standaard Encyclopedia The following can be read under the heading "Evolution": "Macroevolution, which includes the occasional appearance and divergence of new groups, as has happened in the course of geological times, and the higher levels of the systematics such as genera, families and orders or classes cannot be directly explained by experimental genetics. The presupposed hypotheses, which are based on drastic changes in genetic makeup, cannot in reality be proven. "
The causes that are said to have increased complexity in living things over the course of millions of years are unknown. The biologist Willem J. Ouweneel concludes that genetics does not provide a basis for believing in macroevolution. In his view, on the contrary, it emphasizes that the original forms of life, mostly the species, sometimes the genera, or perhaps even the families, however variable they may be, as a whole are constant and mutually discontinuous (2).
Rapid speciation or microevolution:
It is undisputed that microevolution is taking place. However, it has also been documented that it can run 10,000 to 10 million times faster than is claimed by many sequences in the fossils (3) (4).
Contrary to previous ideas, animals can adapt to changed environmental conditions within a few generations (5). It is therefore clear that, from a biological point of view, no longer periods of time were necessary for paleontologically documented microevolutionary processes (6).
A good 700 personalities have expressed their skepticism about the idea of macroevolution on the following website: http://www.discovery.org/scripts/viewDB/filesDB-download.php?command=download&id=660
Thesis 02 | Menu
(1) Helmut Schneider, Natura, Biology for high schools, Volume 2, Teacher's Volume, Part B, 7th to 10th school year, Ernst Klett Verlag, 2006, p. 274.
(2) Willem J. Ouweneel, Evolution at the turn of an era, Christian publication distribution Hückeswagen.
(3) Virginia Morell, Predator-free guppies take an evolutionary leap forward, Science 275, March 28, 1997, p. 1880.
(4) Stephen Jay Gould, The paradox of the visibly irrelevant, in: The Lying Stones of Marrakech, Frankfurt / M., 2003, pp. 411-429.
(5) Klaus Neuhaus, Rapid adaptation of iguanas (anoles) to new habitats, Study Integrale 1997/4, pp. 81-83.
(6) Uwe Brüggemann, Study Integrals 1998/1, pp. 38-39.
(Picture "Micro- & Macroevolution") Reinhard Junker and Siegfried Scherer, Evolution a critical textbook, 2006, p. 52.
Comment this site!
Bad Boy wrote:
Something like that ... I have the edition of Gould's book here that you are paraphrasing, let's say. However, Gould does not speak of "microevolution" but of evolution. That means you can watch evolution. He calls that in this article
hubi stendahl wrote:
Quote Forist Bad Boy:
"I also ask you to define what is meant here by basic types. And I don't mean any collection of examples or analogies, but a clearly defined DEFINITION!"
I'm just a Forist, b
U.N. D. master wrote:
to thesis 1:
The distinction between micro and macro evolution in this form is primarily a creationist, but not a scientific, phenomenon. The results are categorized here, however, not the mechanisms of Evol