A clear and easy way to explain micro- and macro-evolution

Creationists love to argue that there’s no such thing as macro-evolution (or, of course, micro-evolution, either) because a dog can’t give birth a cat, or some similarly brainless argument. Of course, in their attempt to discredit evolution through mockery, all they’re achieving is revealing their own colossal ignorance of the issue. Maybe this will offer them some much-needing understanding:

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What am I saying? Of course they won’t understand. If Creationists could understand basic science, we’d enter a logical deadlock, ’cause there wouldn’t be any Creationists to begin with. But, at least we’re left with cool graphics like this to help educate the rest of us.

(via Friendly Atheist)