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What's more, we have evidence that the lactose processing gene has become widespread in humans in the last 7000 years. Not to mention the genetic changes that
by wiredfool 14y ago
What's more, we have evidence that the lactose processing gene has become widespread in humans in the last 7000 years.
Not to mention the genetic changes that have occurred in the foods over those times.
- a_bonobo 14y agoHere's my new favourite example for this recent evolution, a paper showing that when we domesticated dogs, their genetic makeup changed to accommodate for a starch-rich diet as shared with humans. >The genomic signature of dog domestication reveals adaptation to a starch-rich diet [1] >Nineteen of these regions contain genes important in brain function, eight of which belong to nervous system development pathways and potentially underlie behavioural changes central to dog domestication6. Ten genes with key roles in starch digestion and fat metabolism also show signals of selection. [1] http://www.nature.com/nature/journal/vaop/ncurrent/full/nature11837.html http://www.nature.com/nature/journal/vaop/ncurrent/full/natu...
- joemaller1 14y agoLactase persistence is simply a gene we're born with failing to turn off. Hardly a radical evolutionary change. Animals which eat plant or grain-based diets have completely different digestive systems than humans.