DaveC426913
Valued Senior Member
As we agree, the ancestor of the dog was the Wolf.
The Wolf ancestors had genetic code which had the ability to create every dog we currently have today by switching genes on and off, by eventual gene deletion, and even by harmful gene mutation. No new genes had to be created to make dogs, they were created by a loss or corruption of the original genetic code of the Wolf.
The progression goes downhill, not up, starting from a higher sophistication in genetic code in exchange for a wider distribution, but with each having less sophisticated code individually.
I guess then the only "pure" life form is the single-celled bacteria from 3 billion years ago...
There is no such thing as "corruption" in evolution. This is wrong-headed thinking.
1] Wolves are not special perfect creatures. The only measure of a creature - any creature- 's fitness is whether or not it survives its environment.
2] Wolves evolved from proto-wolves during a relative ice age. They evolved traits that helped them survive, such as large size and thick coats.
We are not in an ice age now. If the wolves of 20,000 years ago had not adapted and evolved they would have died out from overheating.
All life forms evolve. The wolves of today are not the wolves of 20,000 years ago. The fact that we happen to call them wolves does not mean they are any closer to wolves of yore than domestic dogs are.
Dogs are thriving in their environment. They are very well adapted to survive. That is the only criterion by which an animal's fitness can be measured.