11. That part's easy : The lab is crammed with cages full of invisible test animals . 12. Mice are the traditional test animals in cancer research. 13. Neither test animal matched the creature in the video. 14. One of the major drawbacks of micro-CT is the radiation dosage placed on test animals . 15. Pattamarat said that standardized breeding and laboratory facilities are needed to produce qualified test animals . 16. Are there other classifications or grades of lab-mice ( CD-2 ? ) or other lab-test animals ? 17. Ideally, a certification process should be in place to routinely test animal products for POP concentrations. 18. The Environmental Protection Agency considers acrylamide, which causes cancer in test animals , a probable human carcinogen. 19. Then they found it had a strong sedative effect in humans, though not in test animals . 20. They loaded the gene onto an adenovirus that would spread throughout the cells of the test animals .