The present research investigated the need to distinguish humans from anima
ls and tested the hypothesis derived from terror management theory that thi
s need stems in part from existential mortality concerns. Specifically, the
authors suggest that being an animal is threatening because if reminds peo
ple of their vulnerability to death; therefore, reminding people of their m
ortality was hypothesized to increase the need to distance from animals. In
support, Study I revealed that reminders of death led to an increased emot
ional reaction of disgust to body products and animals. Study 2 showed that
compared to a control condition, mortality salience led to greater prefere
nce for an essay describing people as distinct from animals; and within the
mortality salient condition but not the control condition, the essay empha
sizing differences from other animals was preferred to the essay emphasizin
g similarities. The implications of these results for understanding why hum
ans are so invested in beautifying their bodies and denying creaturely aspe
cts of themselves are discussed.