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Most young earth creationists who have studied the issue will make a distinction between evolution within a species (micro-evolution) and evolution from species to species (macro-evolution). The former they liberally embrace; the latter they reject as unbiblical. The distinction is that in microevolution, the gene pool is diminished, whereas it is increased in macro-evolution.

Is evolution really limited to occurring within species only? What about within a genus? Or a family? At what point does a YEC draw a line in the sand and say, “This far you may evolve and no farther!”

In the Answers In Genesis article “Were Dinosaurs On Noah’s Ark?“, the author makes an interesting observation about micro-evolution as he explains how so many different species could fit on the ark:

Creationist researcher John Woodmorappe assumed, for his calculation, that each “kind” would be the ancestor of all “species” in a modern “genus” (plural genera), meaning that only about 8,000 animal genera (including some extinct animals), and when multiplying by two, meant that over 16,000 animals had to be aboard. When you realize that horses, zebras, and donkeys are probably descended from the horse-like “kind”, it should be clear that Noah did not have to carry 2 sets of each such animal. Also, dogs, wolves, and coyotes are probably from a single canine “kind”, so hundreds of different dogs were not needed.

According to this article, the line in the sand for a YEC is the genus. Evolution can take place as much as it wants but only within the confines of a genus. But what if we go back one classification, from genus to family? Can evolution take place within a family? If we take Woodmorappe’s definition of “kind” strictly, then the answer is no. But let’s consider this within the following example. Lions are in the Panthera Genus, but house cats are not. Both, however, are in the Felidae Family. I do not doubt that a YEC would have no problem lumping both cats and lions under one “kind.” So should we include families, then?  If we can include families, what’s to stop us from going up an order, phylum, class, etc.?

If a YEC finds it acceptable that a horse “kind” can result in zebras, mules, and horses, why would it be unacceptable that a carnivorous “kind” should result in cat-like animals, dog-like animals, etc.? It all seems sticky to me. I would imagine that a YEC would say that the difference has to do with the gene pool increasing or diminishing. My knowledge of genetics is close to nil, so I really can’t contradict or agree with that answer. Even if this explanation is accurate, why can’t we say that a carnivor-like “kind” lost genetic material and became a lion in one instance and a wolf in another instance?

I think the issue goes back to Genesis 1:24, which says that God created animals according to their kinds.

And God said, “Let the land produce living creatures according to their kinds: livestock, creatures that move along the ground, and wild animals, each according to its kind.” And it was so.

It seems to me that there is an awful lot of straining over where evolution may happen and where it may not, all for the sake of maintaining the “kinds” mentioned in the above verse. This seems so unnecessary to me. Does evolution in any way negate the fact that God made animals according to their kinds? Whether God uses evolution or fiat creation, the end result is the same:  different kinds of animals. Verse 24 is still true.

So tell me, wordpress people (YECs and non-YECs alike). Am I missing the boat here? Is there a case to be made that it is one thing for a species to form within a kind and another thing for a species to form into a species that is markedly different? Is genetic information really lost going from the original horse kind to a zebra or a mule?

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