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I have always wondered about what causes some people to have twins (e.g. twinning), and why fertility treatments for women often result in much higher chance of twinning or even higher number of babies. While the "unassisted" conception of twins is usually explained away as being genetically...

There was a Russian researcher in the 19th century called Kropotkin, and he formulated a theory that evolution is a process influenced a lot more by cooperation than by competition. Peter Kropotkin - Wikipedia, the free encyclopedia Unfortunately, his ideas were not popular in the West and up...