So, dogs are less fit than wolves and should be going extinct? Or, is it the parent that goes extinct? What if both are still thriving? (Not just referring to dogs but any lineage splitting)
Are cattle, elk, deer caribou distinct kinds? Please, could you define kind specifically and it’s limits and explain the limits of archetype?
Returning breeds such as a poodle or a weiner dog would be their demise.
No, I cannot tell you the kinds until we have a better genetic map going back in time.
This as I quoted before also show the very distinct boundaries so this should help us with the research,
It is textbook biology, for example, that species with large, far-flung populations—think ants, rats, humans—will become more genetically diverse over time.
But is that true?
“The answer is no,” said Stoeckle, lead author of the study, published in the journal Human Evolution.
For the planet’s 7.6 billion people, 500 million house sparrows, or 100,000 sandpipers, genetic diversity “is about the same,” he told AFP.
The study’s most startling result, perhaps, is that nine out of 10 species on Earth today, including humans, came into being 100,000 to 200,000 years ago.
“This conclusion is very surprising, and I fought against it as hard as I could,” Thaler told AFP.
“another unexpected finding from the study—species have very clear genetic boundaries, and there’s nothing much in between."
“If individuals are stars, then species are galaxies,” said Thaler. “They are compact clusters in the vastness of empty sequence space.”
The absence of “in-between” species is something that also perplexed Darwin, he said."
Read more at:
Sweeping gene survey reveals new facets of evolution