anti-malaria

we recently learned about how, in africa sickle cell is high in the same areas as malaria is. as well as how the sickle cell is actually good against the parasite that causes malaria. oh, and I also learned that malaria is caused by a parasite... =D. and this is an example of natural selection, those with sickle cell live, those without dont... and thus there are less without, and more with. : )