Ancient hominid ears were tuned to high frequencies
![Paranthropus robustus skull](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/09/092515_bb_homhearing_free-1.jpg?fit=860%2C460&ssl=1)
HIGH-PITCHED Scientists made a virtual 3-D reconstruction of the ear anatomy for Paranthropus robustus and determined that the hominid heard the high-frequency sounds needed to discern certain consonants.
Rolf Quam