Which term is used to describe an animal which limits its activity to periods of dim light at dawn and dusk?
a) Diurnal (pron: die-ER-nal)
b) Vesperal (pron: VESS-per-al)
c) Crepuscular (pron: kri-PUSS-kyule-ar)
d) None of the above
ANSWER: B - CREPUSCULAR