People who migrated from Asia to the New World camped out for 20,000 years on land now submerged under the Bering Strait between Alaska and Siberia, according to a genetic analysis published on Tuesday. A team at the University of Florida combined studies of DNA, archeological evidence, climate data and geological data to come up with their new theory, which describes a much longer migration than most other researchers have proposed. "We sort of went out onto a limb, incorporating all this nongenetic data," molecular anthropologist Connie Mulligan said in a telephone interview. Mulligan's team proposes that the people who...