Another very interesting thing to think about is about our food and digestive system. What are humans supposed to eat? How did our digestive system develop and adopt, considering that almost every plant we cultivate and eat has been substantially modified through centuries of artificial selection. A wild corn, wheat, or carrot is almost impossible to eat and digest.
Our diet has indeed changed greatly. I wouldn't say that all of our crops and domesticated animals are all unhealthy though. Fortunately, humans are opportunists and relatively adaptable omnivores. But yes, it would be a bit of a challenge for most people to replicate our ancestral diet with available food items. We don't eat nearly enough insects either. ;)
@@LifesLaboratory Tnx for replying. Diet is such a strange topic. One would think that we would figure it out by now. We have thousands of phd and scientists, but we still can't decide what we're supposed to eat. One group swears in the all vegan, while the other in all meat diet.
The history of dog breeds is well-understood and well-documented. Breeders are still generating new breeds. The different breeds were not "separately created". Dogs and wolves can interbreed, indicating they are the same species. Wolves gave rise to the breeds of dogs we see today through selective breeding (artificial selection).
@@vesuvandoppelganger Dog breeds are generated through the selection of desired traits, not by simply crossing breeds. There are a number of good dog breeding sites that present the history of the different breeds. Out of curiosity, which breeds do you think are the "original breeds"?
@@vesuvandoppelganger I don't know. It was your assertion that some breeds were created de novo (from nothing) and that all others were hybrids. This conflicts entirely with the written history of dog breeds. I was hoping you could flesh out your hypothesis.
No That's not how breeding works Example - If you wanted a cute small dog width long ears You start width a dog width large ears. Down breed it into a smaller size dog,but preserve the ears Example - Phoenix foxes don't have large ears Day have small heads. Their ears aren't bigger Dan there prehistoric wolf ancestor their head are small compared to their ears
@@Nightman-eb8mj Yes, it would work width man but this guy said you Ken start from a dog width no ears. You Kent breed a group of furless dogs into dogs width fur to their legs But you Ken down breed a long fur dog two a smaller dog width fur to its legs You ken preserve the long fur while you down breed it's size.
Yes, you could, but that would be eugenics... which is generally frowned upon. ;) Now that we can treat many disorders, we likely have slowed the rate of natural selection in humans. Sexual selection might be the most prominent selective force at the moment.
Please explain how breeding is evolution. The DNA required to create a new breed (the same animal group) is already in the animal (natural / sexual selection). For evolution to occur, one animal must transform to a new animal (not creation of a new breed of the same animal). That surely must require the introduction of new and therefore foreign DNA. Am i right in thinking that animals can only reproduce by Procreation? If this is the case.....and we know it is..... They therefore only have the DNA of their animal group in them. So, a dog can only breed with a dog to produce another dog! A cat only breeds with a cat to produce another cat. etc etc Please explain where would the new DNA comes from to produce a new animal. A finch is still a finch even if the characteristics change from island to island. How is that evolution?
I have not stated or implied that artificial breeding is evolution. Regardless though, new traits appear as a result of genetic mutation. These mutations create new alleles. These alleles are new DNA sequences. Microevolution is the result of natural selection altering allele frequencies within a population. But you appear to be more interested in macroevolution, the appearance of brand new species. This is discussed in the following two videos. Cheers.
I rely on empirical evidence and logic to make tentative conclusions. Evidence should be used to build models. Evidence should not be ignored to maintain pre-determined ideologies. I am not afforded the luxury of certainty. ;) Of course I agree with you that these are all still birds, in fact that was the point of this example. Cheers.
@jaysmith6863 Please provide examples of what has been ignored or distorted. Occasional instances of bad science do unfortunately occur, but you seem to be suggesting a conspiracy of some sort.
I love your channel. Your pacing and story telling are fabulous, and a true talent. Really looking forward to your future work.
Thanks! I really appreciate the comment. Stay tuned!
Another very interesting thing to think about is about our food and digestive system. What are humans supposed to eat? How did our digestive system develop and adopt, considering that almost every plant we cultivate and eat has been substantially modified through centuries of artificial selection. A wild corn, wheat, or carrot is almost impossible to eat and digest.
Our diet has indeed changed greatly. I wouldn't say that all of our crops and domesticated animals are all unhealthy though. Fortunately, humans are opportunists and relatively adaptable omnivores. But yes, it would be a bit of a challenge for most people to replicate our ancestral diet with available food items. We don't eat nearly enough insects either. ;)
@@LifesLaboratory Tnx for replying. Diet is such a strange topic. One would think that we would figure it out by now. We have thousands of phd and scientists, but we still can't decide what we're supposed to eat. One group swears in the all vegan, while the other in all meat diet.
9:19
The breeds of dogs didn't descend from wolves. Wolves and the different breeds of dogs were separately created.
The history of dog breeds is well-understood and well-documented. Breeders are still generating new breeds. The different breeds were not "separately created". Dogs and wolves can interbreed, indicating they are the same species. Wolves gave rise to the breeds of dogs we see today through selective breeding (artificial selection).
You can only create new breeds that are new combinations of the original breeds that were created.
@@vesuvandoppelganger Dog breeds are generated through the selection of desired traits, not by simply crossing breeds. There are a number of good dog breeding sites that present the history of the different breeds. Out of curiosity, which breeds do you think are the "original breeds"?
How can anyone possibly know which breeds were originally created?
@@vesuvandoppelganger I don't know. It was your assertion that some breeds were created de novo (from nothing) and that all others were hybrids. This conflicts entirely with the written history of dog breeds. I was hoping you could flesh out your hypothesis.
6:55 But, the question is: "Can we do the same thing with humans?"
No That's not how breeding works Example - If you wanted a cute small dog width long ears You start width a dog width large ears. Down breed it into a smaller size dog,but preserve the ears Example - Phoenix foxes don't have large ears Day have small heads. Their ears aren't bigger Dan there prehistoric wolf ancestor their head are small compared to their ears
@@iwkaoy8758 Why wouldn't the same, or similar process work with humans too?
@@Nightman-eb8mj Yes, it would work width man but this guy said you Ken start from a dog width no ears. You Kent breed a group of furless dogs into dogs width fur to their legs But you Ken down breed a long fur dog two a smaller dog width fur to its legs You ken preserve the long fur while you down breed it's size.
Yes, you could, but that would be eugenics... which is generally frowned upon. ;) Now that we can treat many disorders, we likely have slowed the rate of natural selection in humans. Sexual selection might be the most prominent selective force at the moment.
@@LifesLaboratory is it possible too breed feathers scales and venom in humans?
Please explain how breeding is evolution.
The DNA required to create a new breed (the same animal group) is already in the animal (natural / sexual selection).
For evolution to occur, one animal must transform to a new animal (not creation of a new breed of the same animal). That surely must require the introduction of new and therefore foreign DNA.
Am i right in thinking that animals can only reproduce by Procreation? If this is the case.....and we know it is.....
They therefore only have the DNA of their animal group in them. So, a dog can only breed with a dog to produce another dog! A cat only breeds with a cat to produce another cat. etc etc
Please explain where would the new DNA comes from to produce a new animal.
A finch is still a finch even if the characteristics change from island to island. How is that evolution?
I have not stated or implied that artificial breeding is evolution. Regardless though, new traits appear as a result of genetic mutation. These mutations create new alleles. These alleles are new DNA sequences. Microevolution is the result of natural selection altering allele frequencies within a population. But you appear to be more interested in macroevolution, the appearance of brand new species. This is discussed in the following two videos. Cheers.
Also remember it is still a bird.
The characteristics that define the group (Aves) are shared due to common ancestry. The ancestor, however, evolved from theropod dinosaurs.
@@LifesLaboratory It is entertaining to listen to folks say that with a straight face and certainty.
I rely on empirical evidence and logic to make tentative conclusions. Evidence should be used to build models. Evidence should not be ignored to maintain pre-determined ideologies. I am not afforded the luxury of certainty. ;) Of course I agree with you that these are all still birds, in fact that was the point of this example. Cheers.
@LifesLaboratory Yet much evidence is ignored/distorted that is the sad part about scientists who beat the evokution drum beat.
@jaysmith6863 Please provide examples of what has been ignored or distorted. Occasional instances of bad science do unfortunately occur, but you seem to be suggesting a conspiracy of some sort.