Final answer:
Comparing nonhuman primates with humans helps us understand evolutionary connections and develop definitions for culture.
Step-by-step explanation:
Dr. Karen Strier gives the reason of understanding evolutionary connections as the importance of comparing nonhuman primates with humans. By studying nonhuman primates, we can gain a better understanding of our own evolutionary history and the traits that we share with them. This comparison helps anthropologists identify what culture is and develop operational definitions for it.