I am interested in the Creationist explanation of lactase persistence in humans. My understanding is based on a brief internet search.
Lactase is the enzyme that breaks down the lactose in mammal milk for digestion. For most humans, lactase production drops on the order of 90% after weaning. For certain groups of people, lactase production continues into adulthood (lactase persistence). The evolutionary explanation is that after domestication of major milk producers (cows, goats, sheep, camels, etc.), digestion of lactose offered a competitive advantage. Those individuals with lactase persistence would have a nutritional advantage especially during hard times. For example, if crops failed during a drought, adults with lactase persistence could survive on milk from animals feeding on plants not edible by humans. Adults without lactase would not fully benefit and might actually be harmed by milk consumption.
As evidence of the evolutionary point of view, the genetic changes that allow lactase persistence are different for Northern Europeans, Saudis, and Africans (among named groups).
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I am curious as to the Creationist point(s) of view especially
A) No evolution (human at least)takes place
B) Humans, having fallen from Eden, are de-evolving & becoming more corrupt/less perfect
Edited by Adminnemooseus, : Shortened display form of 3 links - The first URL is very long, and as of this first edit, does not work.
Edited by Adminnemooseus, : Fixed first URL - It was 264 characters long and should have been only 263 - I deleted a " " in the middle.