Caught sight of this in my local newspaper...
There's more on the site,
http://www.tinnong24h.com/Health/ReproductiveHealth/story?id=4258128&page=1
By AUDREY GRAYSON
ABC News Medical Unit
Feb. 8, 2008
While the thought of searching for a potential mate at a family reunion might sound repulsive to some, researchers in Iceland report that "kissing cousins" may produce more children and grandchildren than unrelated couples.
A study released Thursday in the journal Science found that marriages between third or fourth cousins in Iceland tended to produce more children and grandchildren than those between completely unrelated individuals.
There's more on the site,
http://www.tinnong24h.com/Health/ReproductiveHealth/story?id=4258128&page=1