People sleep fewer hours than gorillas. According to Allison and Cichetti, this discrepancy might result from
a. superior human hunting abilities.
b. the tendency for early humans to sleep out in the open, whereas gorillas sleep in nests.
c. the ability of humans to find safe shelters and their lesser likelihood of being prey.
d. the greater likelihood of humans to be prey.
Question 2
Rachel, a biology student on a field study in the Amazon, observed the behavior of a small mammal that was frequently preyed upon by birds, snakes, and monkeys. It built burrows at the base of trees. Based on the work of Allison and Cichetti, what predictions can Rachel make about her mammal's sleeping habits?
a. It is unlikely to sleep more than a few hours per day, and will do so out in the open.
b. It is likely to sleep many hours per day in its burrow.
c. It is likely to sleep many hours per day out in the open.
d. It is unlikely to sleep more than a few hours per day, and will do so in its burrow.
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