1.   Male Wistar rats were used as the experimental animal.

2.   Actually, in laboratory experiments at Wilkes University in Pennsylvania, the research psychologist uses rats as guinea pigs.

3.   Hagen began doing unpaid research at Robert Wood Johnson, using rats to develop a treatment for bladder cancer.

4.   Like virtually all drug companies, BioChem Pharma uses rats and mice in research, Atwater said.

5.   Law enforcement officials say you have to use rats to catch them, but sometimes the informants are worse than their targets.

6.   No rats are used in his work.

7.   No one knows how many mice and rats are used in experiments because they are exempted from USDA reports.

8.   Results of a lengthy study using healthy rats showed only limited effects on their lungs, said Daniel Greenbaum, president of the Health Effects Institute.

9.   Using laboratory rats, Lane has been producing remarkable three-dimensional images of living bone and how osteoporosis depletes bone mass, making victims vulnerable to serious fractures.

10.   The discovery of similarities between human and animal dreams could enable scientists to use the rats to learn more about the human mind, Wilson said.