Studies of nonhuman language abilities seem to indicate that human language may have evolved from a precursor that was probably ____.
A) present only in human ancestors
B) a by-product of total brain size
C) present in the ancient ancestor from which humans and bonobos evolved
D) a single-gene mutation

Question

Quizplus · Accepted Answer

Studies of nonhuman language abilities (particularly those of bonobos) suggest that some aspects of human language may have evolved from a common ancestor that was shared by humans and bonobos. This suggests that the precursor to human language was present in the ancient ancestor from which humans and bonobos evolved. There is no evidence to support choices A, B, or D.

Studies of Nonhuman Language Abilities Seem to Indicate That Human