a. What makes our opposable thumbs unique?
b. What advantages do our opposable thumbs give us? Are there any drawbacks to the opposable thumb? What are our limitations? Do our strengths offset any limitations?
c. What are other aspects of humanity that makes us unique?
d. What effect did the evolution of opposable thumbs have on the evolution of our species?
e. What type of information can we gain from experimentation on animals?
f. What experiements are being shown in the clip? What are the scientists trying to learn? Do real scientists do similar experiments, or are these experiments just used by the movie for laughs?
g. Why are rats and mice frequently used in medical and psychological studies? Can we gain any information about ourselves from these animals? In evolutionary terms, how related are we to rodents?