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Is this evolution theory happening until now? How come there are no new humans created by this evolution?
26 Answers
- Anonymous1 decade agoFavorite Answer
We are all transitional beings. Every human born is a change in the species. These changes are very slight and unnoticeable. For evolution to work, the changes must be slight. If a person changed too drastically, they wouldn't be able to successfully mate with humans that haven't made identical drastic changes. Evolution doesn't work in leaps and bounds. It inches along over millions of years.
- ShinigamiLv 71 decade ago
If it's happening now, it wouldn't be a theory, by your logic.
The march of evolution is inexorable, no matter what your opinion or beliefs.
The closest we could show you that evolution works is the adaptations that we see in nature. For instance, shortly after the Industrial Revolution, the white butterfly became black, simply because the black ones could not be seen by their predators against the soot-covered tree trunks that grew beside the coal factory. All the white ones got caught and eaten. Previously, when the tree trunks were paler, the black ones were caught and consumed.
Another adaptation is that lake trout have developed different markings in one part of the Great Lakes. They breed only within their own group and no longer mingle with the other trout.
- Anonymous1 decade ago
Every time a baby is born, a new human is created.
This baby has 50 percent of the genes of both parents. So it's neither exactly like its mother, nor exactly like its father.
Sometimes, a gene gets changed through mutation and that gene is neither to be found in the mother or father. Most of the time, this is a bad thing, but every once in a while, maybe every 1 000 years or even less, a small mutation happens which is actually good for the child.
So that's how.
- Judo ChopLv 41 decade ago
There are mate, spontaneous mutation occurs all of the time. Recently there was a baby born with 8 limbs. Victims of chernobyl had children with all sorts of deformaties.
In short though, evolution takes millions of years, not centuries!
- 1 decade ago
Evolution is technically defined as: "a gradual process in which something changes into a different and usually more complex or better form."
Evolution has several important components: Natural Selection, Macro-evolution, and Micro-evolution.
Natural selection is the mechanism that drives evolution. This mechanism causes "abnormal" organisms of a kind to survive an environmental change, making them the "new normal." According to the Theory of Evolution, overtime this can cause an organism to change into a completely different forms of life. (Natural a.k.a suvival of the fits)
Micro-Evolution, a.k.a. variations within a kind. It is generally agreed upon that the hundreds of different domestic cat "breeds" PROBABLY all decended from an original pair of "cats." The variations are always in a desending trend and are constrained by the genetic code. "Variations within a Kind," is NOT upward evolution from simplicity into complexity as supposed by the Evolutionary Theory. NO NEW GENETIC INFO. is added, genetic information is always lost: The original pair of "cats" would have had all of the potential traits of all of their various progeny, while the descendants themselves have lost that same potential. The CAT Kind has given birth to many species which in turn became isolated gene pools. (genetic drift and bottle nose effect, thats why you have hymilaian and simease cats) The original pair of cats would have had all of the potential traits expressed in all of their various offspring. This is all that has ever observed.
Genetic drift does not create an new kind but isolates paticular traits do to inbreeding or environmental circumstances that give one variation an advantage. Dominant and ressesive genes come in here, this does not isolate the new variation from the main KIND. (I can breed hymilaian and simeese cats and they will produce young that will continue to re-produce) Genetic info is lost. in genetic drift. Also note, excessive inbreeding weakens a breed due to the excesive loss of genetic potential.
Macro-Evolution is the transition from one Kind of organism (fungi, plant, reptile, etc.) into another. Macro-evolution involves large or vital changes in the basic function of an organism. This cannot happen during a single organism's life, so it can only be the result of a series of genetic mutations.
Please note the following: Every genetic mutation involving form or function ever observed in laboratories or in nature has either been lethal, crippling, or self-reversing. (This is very importand to understand about genetics)
Natural selection keeps a breed or kind strong by removing the weak. (Obsevable) Micro-evolution is the loss of genetic potential through variations of a Kind. (Observable) Macro-evolution is the transition a from one kind to another through the accumulation of slow gradual beneficial genetic mutations. (never been observed)
Also Note: Micro-Evolution (loss of genetic potential) works aganst Macro-evolution (gain of genetic potential), and natrual selection is just survival of the fittest, it works neither for or against the loss or gain of genetic potential.
As you can see the theory is just an interpitation of evidences. Many will claim micro-evolution, but all that means is that there are different variations of a kind. So by their micro-evolution the "new" humans are the different races all around the world. The variations of humans all the differences: short, tall, large, small, every different skin tone, hair colour, eye shape and colour, etc. (every trait concievable) This is the correct answer according to micro-evolution, which is the only evolution that they can claim as actuality.
- Anonymous1 decade ago
We have new humans every minute of every day. Each slightly different than all others.
You think that the thousands of years we've been a species is really that long? You're going to have to wait a bit longer...but while you are waiting you can read some good books that explain it.
- Anonymous1 decade ago
That isn't what the theories predict. There's plenty of laymen's level material available to explain evolution - if you actually want to understand it.
- qxzqxzqxzLv 71 decade ago
There might be - but it takes a long time for changes to be apparent. It is similar to looking at a 5-year old boy for a second, not noticing any growth and claiming that he is not growing.
- Anonymous1 decade ago
Evolution takes thousands and thousands of years. We have changed since 50,000 years ago and we will most likely keep changing.