"common evolutionary developments" Calling variation in coli "evolution" does not mean any evolution has taken place.
They showed an organism evolve to take on a major new characteristic, and that was just in the space of 20 years, in ONE experiment. That characteristic (being able to transport citrate through the cell wall) is one of the major things that allows the genus Escherichia to be distinguished from Salmonella.
(if anybody at this juncture suggests that it was evolving into being Salmonella.....

A bunch more major characteristic additions and changes and you see - one is already beginning to rapidly head towards an entirely new genus, and that in a very short space of time (visible to human lifespan). Now take that process - and make it happen in countless numbers of multiple places, in parallel and sometimes in conjunction, for BILLIONS of years...
Dogs and cats have a lot of variation and that does not prove anything.
It proves there's a lot of variation in what we refer to vaguely as 'dogs' and 'cats', surely. So what? The problem lies in your misunderstanding of what species, genus, and colloquialisms are in terms of referring to animals.
To prove this point - what do you think a dog is?
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