He says looking back thousands of years can help researchers look forward by understanding how a disease changed over time.

VOA: special.2010.06.29

And how I was looking forward to getting a letter from her just as soonas she had the time.

VOA: standard.other

So we are looking at the closely. We haven't yet made a determination as to the best way forward."

VOA: standard.2009.08.14

Ruhli,who is a medical doctor as well as a paleo-pathologist, says looking back can help scientists look forward, by revealing how the disease evolved over time.

VOA: standard.2010.05.05

This is completely unacceptable." Palestinian officials say they are looking forward to a visit in the coming days by the U.S.special envoy for the Middle East,George Mitchell.

VOA: standard.2009.09.07

Toni Robnett, who once saw a young Michael Jackson perform as part of the family pop group, the Jackson 5,was looking forward to see him perform again.

VOA: standard.2009.06.28