Crepitus
Diamond Member
- Mar 28, 2018
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That's fascinating, I had no idea.It turns out that sickle cell disease is common in tropical climates where malaria kills thousands because those who have sickle cell disease can not be infected with the malarial parasite, so this allows more people with that trait to survive to reproductive age and pass on that heritable disease to others. That is the very definition of evolution.