Evolve Culturally or Die
An important rule of evolution is that species lose adaptations they aren’t using. Cave fish have eyes that do not work because they live in an environment without light. Crocodile icefish blood has lost its hemogloblin because they live in oxygen-rich water where they don’t need the protein to transport oxygen throughout their bodies. Kiwis, chickens, and ostriches have wings but can’t fly. Humans lack the gene to make Vitamin C, forcing us to get our ascorbic acid from dietary sources.
This happens because when a trait isn’t in use, natural selection does not discriminate against mutations that break the trait. For example, when an individual impala is born with a mutation that gives it bad eyes, it gets eaten by a lion, but when a fish in the total darkness of a cave gets bad eyes, they are just as likely to survive as the fish with working vision; in fact, they have a slight advantage for not having to put resources into building and maintaining eyes that provide no advantage.





