There are several birds and monkeys that try to give their children/eggs away.The bird places their eggs in another nest and then are feed by the host of that n

There are several birds and monkeys that try to give their children/eggs away.The bird places their eggs in another nest and then are feed by the host of that nest. I think that is an evolutionary advantage, the genes survive and the fathers have more time to feed themselves and have more eggs. As humans we kind of do a similar thing, kindergartens, schools(other people that we don't know) rise our children and spend more time with them than us as parents. As many times and many people in HN, I'll recommend this book: The Selfish Gene by Richard Dawkins