1.   Capsaicin destroys small sensory nerve fibres if it is injected under the skin of newborn rats.

2.   Dearborn of Case Western Reserve has found that newborn rats will die of lung bleeding when quantities of Stachybotrys spores are put into their lungs.

3.   In a third experiment, the motor neurons of newborn rats were severed.

4.   Ruda and her colleagues injected an irritating substance to create a sore and swollen hind foot for five to seven days in newborn rats.