Speciation is a grayscale, not black and white. There are examples of everything from "produces fertile offspring" over "the relevant bits don't fit" to "nothing happens",
Originally Posted by DuaneW
My impression is that biologists consider populations to be different species when they don't breed, not when they can't.
And 1-4% seems to be an awfully low number given the 90+% we have in common with a gorilla. (and the 50% we have in common with a banana)
Reductionist and proud of it.
Being ignorant is not so much a shame, as being unwilling to learn. Benjamin Franklin
Chase after the truth like all hell and you'll free yourself, even though you never touch its coat tails. Clarence Darrow
A person who won't read has no advantage over one who can't read. Mark Twain