The story of Noah (in the Bible) is so infuriating...

[Esquilax]

Dogs have been breed fo a few thousand years and they all can still interbreed.

GC

And yet there are species of skinks and birds that have been breeding within our lifetimes that no longer can. Do a search for "ring species" and see for yourself, it's actually pretty interesting; Population A gives birth to Population B, which in turn gives rise to Population C, and so on. Population, let's call it G, is a product of the direct lineage of Population A, and yet if a member of Population G is encouraged to breed with a member of Population A, no interbreeding will be possible due to the intervening genetic drift.