dogs
Posted: Tue Dec 17, 2013 11:51 am
Dogs have been hanging out with human beings for a very long time, between 15,000 and 33,000 years, perhaps even as long as 100,000 years by some estimations.
Let us take the conservative figure: 15,000 years ago is 5000 dog generations, since a dog can reproduce at 3 years of age. My dog Tango doesn't even have gonads and she is 3 years and 2 months old and has been presenting herself to me for at least 2 years in the most shameless way that you can imagine. [ Too bad for her because she is not my type, but I love her anyway. (:->) ] 5000 human generations would be 80,000 doggie years, assuming that primitive 16 year old girls would be ready to reproduce. 80,000 years is a lot of evolution.
If we take the longer estimate of 33,000 years ago, then we come up with 176,000 years of evolution. Either figure means that dog's metabolism could easily adapt to what human beings have been eating for those 15,000 to 33,000 years.
My dog Tango will eat just about anything: apples, apple cores, meat, kefir (last to be eaten in her doggie bowl), shoes, sandals, Christmas ornaments, gravy, commercial dog food made with grains, commercial dog food made with sweet potatoes, etc. etc. It is not possible that wolves ate grains in the wild. It is possible that wolves ate proto-sweet potatoes in the wild, along with elk, deer, rabbits, etc.
I have switched from the cheap grain and meat based commercial dog food to the more expensive sweet potato and meat based commercial dog food. If there were a pure meat commercial dog food, I might consider buying it.
Roger Bird
Let us take the conservative figure: 15,000 years ago is 5000 dog generations, since a dog can reproduce at 3 years of age. My dog Tango doesn't even have gonads and she is 3 years and 2 months old and has been presenting herself to me for at least 2 years in the most shameless way that you can imagine. [ Too bad for her because she is not my type, but I love her anyway. (:->) ] 5000 human generations would be 80,000 doggie years, assuming that primitive 16 year old girls would be ready to reproduce. 80,000 years is a lot of evolution.
If we take the longer estimate of 33,000 years ago, then we come up with 176,000 years of evolution. Either figure means that dog's metabolism could easily adapt to what human beings have been eating for those 15,000 to 33,000 years.
My dog Tango will eat just about anything: apples, apple cores, meat, kefir (last to be eaten in her doggie bowl), shoes, sandals, Christmas ornaments, gravy, commercial dog food made with grains, commercial dog food made with sweet potatoes, etc. etc. It is not possible that wolves ate grains in the wild. It is possible that wolves ate proto-sweet potatoes in the wild, along with elk, deer, rabbits, etc.
I have switched from the cheap grain and meat based commercial dog food to the more expensive sweet potato and meat based commercial dog food. If there were a pure meat commercial dog food, I might consider buying it.
Roger Bird