[Photo of California sea lion with headphones on]

Rocky, a California sea lion, listens for tones through a pair of headphones in an experiment designed to test how well pinnipeds hear in air. The headphones play sounds at different frequencies and volumes; if it thinks it hears a sound, the animal touches the Wiffle ball with its nose.

Photo: Schusterman group, Long Marine Lab

Photo of Burnyce in hearing experiment

Back to Hearing sidebar

To main article