I shouldve clarified, what i meant is that the dog bred after a billion times might not be able to breed with the original dog

Selective reproduction is not evolution

Well, a dog bred a million times probably won't even have the genetic traits to be classified as a dog anymore

How not

Well, as I said, dna changes between generations

It certainly look very different physically but it will remain a dog

Dna changes aren't just appearance wise. Since our dna defines how we develop, changes to the dna affect all parts of our body. The neural system. The digestive system. The circulatory system. I can name many more systems that make up the dog's body, but all these will be affected by changes in DNA. Meaning that through billions of breedings, there are billions of possibilities for changes to occur. Hell, along the way, I wouldn't be surprised if an offspring of the dog is born with a deformed reproductive system, meaning that the line stops and cannot reproduce even further

Classification of animals are based of their genetic traits, which is defined by their DNA

Evolution isn't Pokemon, there's no "set changes in genetics". Anything can happen, and if these changes are favorable to the animal, it is more likely to survive and reproduce

you said so much but none of it is relevant'

https://www.telegraph.co.uk/news/science/science-news/10486479/Phobias-may-be-memories-passed-down-in-genes-from-ancestors.html

What I'm saying is that at one point, the dog's genetic traits will change to a point that it will no longer be able to be classified as a dog

No Pomergranates

you have no proof of that

even if he gets a deformed reproductive system for some reason it will still be a dog with a deformed system

you cannot breed to seperate species

I mean you could try but they wouldn't give you viable offspring

Ye phobias are genetic

Neanderthals and homo sapiens, for example

or a sheep and a snake

Well, that's a little back in history so that's a bad example

you *could* make them mate

but they wouldn't provide offspring

They won't produce offspring, of course

ya no such thing as Neanderthals

weak evidence

they could be just another human race

that died off

there is such a small difference

Their reproductive systems are too dissimilar to do anything

like you could see a bigger difference between southeast asians and africans for example

Better example

Donkey and a horse

Two different species, but the reproductive systems of their respective gender counterparts are similar enough to reproduce to make a mule

donkey is still a horse

🤔

Yup, still in the same ball park

yes i dont deny that at some point you cant reproduce

i know there is plenty of evidence for that

yesnt

Then where do you draw the line between species?