Your linked article by Jerry James Stone is an example of "A little learning is a dangerous thing," or, corrupt reporting, or most likely, both.
Stone, while appreciating evolution and speciation, shows a lack of real understanding of it, plus jumping to an unwarranted conclusion---based on the information he cites. If you note his linked source
Discovery News, it says:
"Killer Whales in the in the North Atlantic Ocean come in two different flavors, and could be in the process of splitting into two species, according to new research by a team of European scientists."
Note the "
could be in the process of splitting into two species," and then take a look at what Stone says,
"Scientists have found that Killer Whales in the North Atlantic Ocean differ in both diet and genetic makeup. In fact, they’re in the process of splitting into two different species all together."
Note the, "
they’re in the process of splitting into two different species."
"Are" and "could be," hardly synonyms, are significantly different indicators of status, and anyone who chooses to substitute one for the other is grossly misleading the reader. Stone's rewrite here is inexcusable.
But not content to leave his mis-characterization as is, Stone then takes it a step further when he dismisses what he has already said "
they [are] in the process of splitting into two different species." and claims they have already made the split:
". . . but this is the first finding of two different species occupying the same region."
IOW, they are no longer in the process of splitting but have made this split. So either Stone has absolutely no idea of the term "species" indicates, or he simply likes to exaggerate, for whatever reason.
My advice is to cross him off your list of reliable sources, because that's exactly what he's shown himself to be here.