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Techno2000
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I didn’t say that, I say that this much time has already passed.
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TMC
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I don’t know if this is a serious comment or not. We are by definition in the present. Billions of years have passed, during which lots of things have happened. Lots of things are happening now, and will happen in the future. Not sure what your point is.We are in the future now… billions of years have already pass for something to happen.
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Techno2000
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Selective breeding is not proof of Darwin’s Theory of Evolution… Wolves produce Wolves … Elephants produce Elephants… etc nothing more, nothing less.
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Wesrock
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I understand what you’re saying, but I think to go too far. A six limbed horse like animal with four legs and two wings could hypothetically evolve. It’s just there’s no real path to that end right now given existing species. The idea that a pegasus is a possible evolution of a horse for that reason is rather absurd, I get.
A unicorn might be possible though.
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TMC
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And I answered your question. I seriously can’t tell if you are just being deliberately obtuse or not. You are ignoring what people are saying and responding with non sequiturs. What is your point?
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Wesrock
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It’s exactly what is predicted by the theory of evolution. And over the course of many more millennia, the descendants of the chihuahua and the descendants of the great Dane, if their populations are reproductively isolated, and if further selective pressures to further differentiate them even more, could diverge into different species. As different as wolves and foxes, and eventually, such differentiation can continue and the differences become more pronounced. All from a subgroup of the same ancestral wolf population.
But anyway, there are numerous examples throughout history of evolution over millions of years. From apes, to many mammals (which exploded in population and diversity after the extinction of dinosaurs), to birds, and so much more.
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Wesrock
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That’s not how evolution works.
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Techno2000
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How does it work.
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Usagi
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Over the billions of years the Earth has existed? All of them, literally.
I mean, you understand that humans, dogs, sharks, oak trees, and Streptococcus haven’t always existed, right? There were different points in the history of life where recognizable versions of each of those started appearing.
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Techno2000
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Nobody can answer my Question : Can you show any animal today that is in the process of changing into something new ?
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PluniaZ
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That’s because they have no answer other than, “It takes billions of years!!!”Nobody can answer my Question : Can you show any animal today that is in the process of changing into something new ?
In other words, their proof is not observable, and is no proof at all.
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Techno2000
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Joe_5859
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Usagi
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It uses the same mechanisms as evolution, albeit consciously directed. It shows that descendants can diverge greatly from ancestors.
But there haven’t always been wolves and elephants. At some point the first population of wolves descended from a non-wolf canid ancestor. All those breeds of dogs we were talking about descended, with our help, from ancestral wolves – as did their cousins, the modern wolves.
Current thinking is that elephants descended from creatures like this:
en.m.wikipedia.org/wiki/Gomphotherium
Those obviously have some features in common with modern elephants, but they are hardly identical.
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Wesrock
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The traits held by a current population may shift over time depending on the pressures the population is facing. That’s really it (absent language of allele frequency and distribution). Given sufficient time, the descendant population compared to the ancestral population could be classed as different species. Given sufficient additional time between the ancestral population and the descendant population, and new and changing circumstances , the differences become more radical.
Asking for an example of an animal currently evolving is a nonsense question. What is not nonsense is to ask “what species are currently undergoing natural selection?” The answer is, “all of them.” There is no difference between micro and macro evolution. They are the same process. Another question is to ask if there’s physical evidence that such differentiation in populations has occurred in history. The answer is, “yes.” We’ve buttloads of it.
All evolution is is the changing in frequency and distribution of alleles in a population over time due to changing selective pressures.
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DaveBj
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You might want to check Gen. 5:4. Cain, Abel, and Seth are the only ones of the children of Adam and Eve whose names were recorded. There were others.
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Wesrock
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Do you, as a practicing Roman Catholic, really want to go down the road of insisting on definitive material proof? I mean, we’ve accumulated significant material evidence for evolution already, which makes me really want to double down on your skepticism and demands for absolute proof here. Please, please don’t make me play devil’s advocate.
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Usagi
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Well, not billions, but yes, it takes many generations and particular circumstances. It’s not a matter of one specific mama ape giving birth to the first baby human, or even to a baby ape-man. It’s about different populations of the same creature being isolated from one another and subjected to different environmental pressures that favor the retention of different traits in their offspring, until eventually the descendant populations are entirely distinct from each other and from the ancestral population.
Look, do you disagree with any of the following? Because this is all it takes for evolution to happen:
- Parents pass on some of their traits to their offspring.
- There is a mechanism (sex, for most large organisms) that combines traits (or rather, genes for traits) in different ways so that a given offspring is not identical to its parents or its siblings.
- Some inherited traits make an organism more likely (compared to its siblings, cousins, and more distant relatives) to survive to be able to have offspring of its own – which, by 1) above, have a chance to inherit the survival-promoting trait.
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rossum
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Yes. You say “changing”. That means that the animal is different from its parents in some way. If it is different, then it is not the same. If it is not the same, then it is “new” in that it has not existed before.
Hence every animal (and plant) species is in the process of changing into something new.
The definition of evolution is: “Changes in gene frequency in a population from generation to generation.” Since gene frequencies change with every birth and every death, the genetic makeup of the population is continually changing into something new.
Remember that not all genetic differences are visible externally.
rossum
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