Evolutionary biology: geography and skin colour.
Diamond
Jared
J
D000818:Animals; D005075:Biological Evolution; D005260:Female; D005492:Folic Acid / Q000378:metabolism; D005843:Geography; D006801:Humans; D008297:Male; D008954:Models, Biological; D010782:Photolysis / Q000528:radiation effects; D012727:Sex Characteristics; D012880:Skin Pigmentation / Q000502:physiology* / Q000528:radiation effects; D014466:Ultraviolet Rays; D014807:Vitamin D / Q000096:biosynthesis
D014807:Vitamin D; D005492:Folic Acid