Adaptation need not only mean genetic (slow), it could just as well be epigenetic. The latter is not well-understood enough to be taught in school textbooks ye

Adaptation need not only mean genetic (slow), it could just as well be epigenetic. The latter is not well-understood enough to be taught in school textbooks yet, but has been of great interest in recent decades. https://en.wikipedia.org/wiki/Epigenetics https://en.wikipedia.org/wiki/Epigenetics