Salon -- March 4, 2008 | Behind locked doors, past a shower, where humans are required to rinse, more than 25 pink pigs crowd into hay-covered pens at the University of Guelph in Ontario, Canada. They look like regular Yorkshire pigs: Their eyes gleam like black marbles, they snort, and they scarf dinner from a trough. “These pigs behave like pigs; they do everything a pig would do,” says John Kelley of Mars Landing, a Canadian agricultural development program. Except for one thing.
