My friend, Arun Chaba, recently gave a brilliant speech on Evolution & Human Behavior. The speech was titled, "All is Well". Following is the transcript: A friend of mine was about to become a daddy. For whatever reasons, his wife insisted that she wanted to have the baby born in her home town, where her mother would be around. My friend didn't want so. This was the cause of a serious conflict between them. A few months later, I read somewhere that humans are one of the few mammals who cannot have babies throughout their lives. About one third of their lives, human female cannot produce babies. During this time, because a woman doesn’t have to worry about producing and taking care of her own babies, she can concentrate on the well being of babies of her daughter and the chances of survival of new born babies multiply. This has given humans an evolutionary advantage. This phenomenon is called grandmother hypothesis and was first given by GC Williams in 1960s...