31.   Like the British artist Damien Hirst, Cattelan uses animals to make the works both repellent and endearing.

32.   Many US researchers, by contrast, are more interested in using cloned animals as a source of tissue for medical transplants.

33.   Ms. Hynde, like Ms. McCartney, has been a vocal proponent of vegetarianism and opponent of using animals for food or scientific testing.

34.   Ms. Travers suggests placing something that smells familiar in the case when the animal is getting used to the carrier.

35.   One was not to use animals, a practice that has since become controversial.

36.   Put to one side any misgivings you may have about the morality of using animals in this way.

37.   Ragona says the decision to use fewer animals has to do with the intimacy of this show.

38.   Scientists who used animals in medical experiments to cure human diseases found their labs destroyed.

39.   Should animals be used at all?

40.   Some animals are used to study the side effects of unproven drugs.