Researchers found that deleting a gene important in embryo development leads to premature aging and loss of stem cell reservoirs in adult mice. This gene, ATR, is essential for the body's response to damaged DNA.

Recently, some of the kid reporters at Newsday saw the new movie Lassie and really liked it. It is about a family that owned Lassie, but because of money troubles had to sell her to a new family that lived hundreds of miles away.

MARTINEZ, Calif. - A dog owners advocacy group asked the U.S. Department of Justice to sue Contra Costa County over a new law that prohibits felons from owning aggressive dogs but does not include an exception for guide dogs.