Date: December 9, 2016
Source: University of Vienna
Monkeys and apes are unable to
learn new vocalizations, and for decades it has been widely believed that this
inability results from limitations of their vocal anatomy: larynx, tongue and
lips.
But an international team of
scientists, led by Tecumseh Fitch at the University of Vienna and Asif
Ghazanfar at Princeton University, has now looked inside monkeys' vocal tracts
with x-rays, and found them to be much more flexible than thought before. The
study indicates that the limitations that keep nonhuman primates from speaking
are in their brains, rather than their vocal anatomy.
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