Natural Selection in Humans
The Malaria parasite can exert a selective pressure on populations. This pressure has led to natural selection for erythrocytes carrying the sickle cell hemoglobin gene mutation (Hb S)—causing sickle cell anaemia—in areas where malaria is a major health concern, because the condition grants some resistance to this infectious disease
Read more about this topic: Evolutionary Pressure
Famous quotes containing the words natural selection, natural, selection and/or humans:
“Natural selection, as it has operated in human history, favors not only the clever but the murderous.”
—Barbara Ehrenreich (b. 1941)
“It would seem that man was born a slave, and that slavery is his natural condition. At the same time nothing on earth can stop man from feeling himself born for liberty. Never, whatever may happen, can he accept servitude; for he is a thinking creature.”
—Simone Weil (1909–1943)
“When you consider the radiance, that it does not withhold
itself but pours its abundance without selection into every
nook and cranny”
—Archie Randolph Ammons (b. 1926)
“The worst condition of humans is when they lose knowledge and control of themselves.”
—Michel de Montaigne (1533–1592)