Researchers began to study them to see what was different about these people.

Then researchers began using the technique to study other cells in the body.

Now researchers have begun to answer these questions, with sometimes startling results.

However, researchers did not begin to use the new facilities until well into the fall 2004 semester.

The body had many genetic behaviors that researchers were only just beginning to understand.

He said researchers began studying insect movement in the 1800's.

"Researchers are just beginning to scratch the surface," he says.

As it has become possible to study the living brain, researchers have begun to watch decision making processes at work.

Only very recently have researchers begun to uncover the cause.

And in new studies, some researchers are beginning to emphasize the distinctions they find.