Bonobos Are a Close Primate Relative to Humans, Sharing 98

Multiple Choice

Bonobos are a close primate relative to humans, sharing 98% of human DNA. Bonobos are particularly interesting to use when studying aggression because they are __________.

A) highly aggressive primates who are known to brutally attack one another
B) led by a male hierarchy
C) very peaceful and led by a female hierarchy
D) the only other animal with the hormone testosterone