ANN ARBOR, MI—A study released Thursday by sociologists at the University of Michigan has found that 90 percent of the biological parents of adopted children ages 6 to 12 are millionaires who own sprawling mansions with huge backyards. “According to our data, nearly all parents who once put their children up for adoption now own luxurious estates with vast grounds that include an Olympic-sized pool, a stable for ponies, and big tree houses that have all the latest video game consoles hooked up to giant TV screens,” said head researcher Joren Offerman, adding that a vast majority of the biological parents were professional basketball players, astronauts, or royalty.  Read the rest here.