The point should be that the 800 breeds of dogs don't have anything to do with evolution. Domestic animals are bred and not permitted to evolve - just as people are now self-breeding and no longer evolve.
The point should be that the 800 breeds of dogs don't have anything to do with evolution. Domestic animals are bred and not permitted to evolve - just as people are now self-breeding and no longer evolve.
Dog breeds are not separate species, but they are examples of evolution: evolution in response to intense selective pressure imposed by humans. Evolution occurs within species as well as causing new species.Those 800 breeds of dogs are all seperate species. They changed over time to become what they are today. How exactly is this not evolution?
Dog breeds ARE separate species by strict biological definitions.Dog breeds are not separate species, but they are examples of evolution: evolution in response to intense selective pressure imposed by humans. Evolution occurs within species as well as causing new species.
You attribute 800 different varieties of dog to genetic drift? Please tell me you're kidding.Yes, Dogs are not Evolution, but simple Genetic Drift, and the affects of the Designer in the Scheme of things.
After that last statement you made...Now you call can attack me as well, and tell me how much I don't know about evolution
Im guessing you're asking what the barriers are for certain species of dogs to breed.So, Separate Species are life forms that do not breed with each other, by affect of several means, boundaries, desire, inability, to name the major ones.
So, which of these are affecting Dogs? Care to enlighten me?
OPer clearly has no idea what he is talking about....
let's all pretend we have knowledge of things we don't, it's fun and builds ourselves up.
Give me a break! Did I actually just read that?
No we KNOW that. Its scientific and objective fact. One of the things that happen with two species that split (Man and apes for example) is the in-ability to cross-breed after a length of time.You assume this.
God Bless
Key.
I'm sorry, but all domestic dogs are in fact classified by biologists as a single species, Canis familiaris. If not prevented by humans, dogs will mate freely outside their breed, causing massive gene flow across breed lines; the breeds would, in fact, quickly disappear if they were not artificially maintained by humans. That means they are not species.Dog breeds ARE separate species by strict biological definitions.
Horses and donkeys are separate species because they seldom hybridize, and the hybrids that are produced are of greatly reduced fertility. As a result, there is very little gene flow between the populations, with or without human intervention.Its much the same as the relation between donkeys and horses. They are in the same genus and family however they are distinctly different species.
Certainly -- that's why they're called "breeds".These different breeds of dogs rose from human breeding.
They are not distinct species. One of the criteria of distinct species is that they cannot produce viable offspring. Frumious Bandersnatch was very astute in pointing out that dogs would be best classified as a ring species.Dog breeds ARE separate species by strict biological definitions.
Its much the same as the relation between donkeys and horses. They are in the same genus and family however they are distinctly different species.
These different breeds of dogs rose from human breeding.
If all dogs besides chihuahuas and great danes disappeared tomorrow, the survivors would very likely form two species. As it is, however, there are many intermediate sizes of dog that permit gene flow throughout all breeds.The idea of a male Great Dane breeding naturally with a female Chihuahua (or vica versa) totally boggles my mind.
The reality that matters is whether they form permanently separate genetic populations as far as evolution is considered.So, while technically and within the rules of biology, they are still the same genus (species), reality suggests that they are not.
Certainly possible.I am pretty certain that the day will come when certain breeds of dogs will not be able to reproduce viable and fertile offspring from other breeds, certainly not in my lifetime, but it will happen. It's called evolution.
We don't know that it will happen. It certainly could and is well on its way, but dogs could easily be bred back to on single interbreeding population, ignoring the obvious resistance among pure-bred enthusiasts.No we KNOW that. Its scientific and objective fact. One of the things that happen with two species that split (Man and apes for example) is the in-ability to cross-breed after a length of time.
Dog breeds are not separate species, but they are examples of evolution: evolution in response to intense selective pressure imposed by humans. Evolution occurs within species as well as causing new species.
I would consider them similar to a ring species but not actually to be one; ring species usually refers to a geographic distribution of interbreeding populations that overlaps in one place. But defining species is not my field.Would you consider dogs to be a ring species?
No we KNOW that. Its scientific and objective fact. One of the things that happen with two species that split (Man and apes for example) is the in-ability to cross-breed after a length of time.
The idea of a male Great Dane breeding naturally with a female Chihuahua (or vica versa) totally boggles my mind.
So, while technically and within the rules of biology, they are still the same genus (species), reality suggests that they are not.
I am pretty certain that the day will come when certain breeds of dogs will not be able to reproduce viable and fertile offspring from other breeds, certainly not in my lifetime, but it will happen. It's called evolution.
I love the tone here, as always, and if I have a tone of the same kind towards Evolutionist they get all upset, Humm, I guess the Golden Rule does not apply in this form.
Yes, we all know that Species are what ever we decide to call it as the flavor of the month.
Yes, Dogs are not Evolution, but simple Genetic Drift, and the affects of the Designer in the Scheme of things.
So, Separate Species are life forms that do not breed with each other, by affect of several means, boundaries, desire, inability, to name the major ones.
So, which of these are affecting Dogs? Care to enlighten me?