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You see, if I say this to most people they would go ' INCEST! I've liked her for a while now, and I can't let her go. I know to the majority it may seem wrong, although I do know several cousins who have married.
I know to the majority it may seem wrong, although I do know several cousins who have married.
"The formation of densely populated urban regions that offer a large selection of distantly related potential spouses is a new situation for humans in evolutionary terms," the researchers write in the Feb. During the past two centuries, the researchers point out, the average relatedness of Icelandic couples has widened from third and fourth cousins to the more recent couple relatedness of fifth cousins. Children of first cousins are second cousins, and their children are third cousins.) Cousin Couples The results make sense from a biological perspective.
"Our definition of a species is a group of individuals who are closely enough related to each other to be able to have offspring," said lead author Kari Stefansson of the University of Iceland in Reykjavik.
Couples who are third or fourth cousins tend to have more kids and grandkids than other couples.
And though considered somewhat of a cultural taboo, mating between "kissing cousins" makes good biological sense, say scientists.
The study also has implications for population growth in a world that's becoming more and more urbanized.
In Iceland, the dramatic demographic shift from a rural society to a highly urbanized one could slow population growth as individuals mingle with a bigger pool of distantly related mates and therefore have fewer kids.
In 2008, for the first time in history, more than half the world’s population will live in towns and cities, according to the United Nations.
For example, if your nearest common ancestor is your great-grandfather, three generations away, you are second cousins.
If your cousin is a different number of generations from the ancestor, then you are first, second, third or more cousins, where the number is one less than the number of generations that the nearer of you and your cousin is from the ancestor.
people with common grandparents or people who share other fairly recent ancestors).
Opinions and practice vary widely across the world.