Is the evolution story really scientific?

[Aielyn]

Farmageddon said:

Aielyn said:

Many dog breeds are the result of artificial selection. But did you know that there are dog breeds that are incapable of breeding with each other? For instance, the beagle and the irish setter cannot breed with each other. Yet they can each breed with the same other types of dog - their DNA is just a little too distant from each other to produce viable offspring.

Do you have any sources for the bolded part? It sounds quite interesting.

I read it while looking into the issue. But there's a slight inaccuracy, now that I've looked a bit deeper. Apparently, they can produce viable offspring sometimes, but most of the time it's not viable. You can, for instance, find it mentioned here: http://sciencenetlinks.com/science-news/science-updates/dog-breeds/