t the safety of these chemicals. (Glaberson 1)
How exactly are these chemicals tested? Are the chemicals mixed in the animal's food? Well, not exactly.
In the tests, animals are forced to eat and drink chemicals using such crude methods as gavage-whereby a tube is surgically inserted into the stomach; they are forced to inhale toxic vapors, have chemicals injected into their bodies, painted on their skin, and dropped into their eyes.
"Rats readily associate food with illness and will avoid a food of they have been ill after eating it," (Escalante, Interview) In this case, the gavage method would be necessary in order to perform a test where something would have to be ingeste
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