You are result of countless reproductions from your ancestors that has not had a broken link in the chain since the beginning of life. Ever wondered how you got here? David Puts gives a TED talk about evolutionary biology and how our mating practices as humans have evolved. The reason why men are more muscular is explained. He also explains why women prefer more masculine, dominant men during their fertile phases, but prefer more submissive men in long-term relationships. He even explains why women are more attracted to men with more masculine tonalities. Are you being masculine? Are you going to continue the chain of life?