When and why did our ancestors lose their fur? And did they really lose it? Why aren’t we naked and aquatic, but rather sweaty monkeys? How many wild theories were proposed to explain our hairlessness, and why did the question remain open? What can lice and fleas tell us about human evolution? How did skin color change during evolution: did our ancestors become lighter or darker? Or maybe first they became darker and then lighter? What was the point of all this back-and-forth, and how do Neanderthals fit in? Why blue eyes for lemurs, and baldness for macaques? And is it true that beards don’t attract women but do frighten men? About this and much more, Alexander Sokolov tells in his book—once again proving that science is incredibly fascinating and sometimes paradoxical.