Jennifer Miksis-Olds plays recordings of from underwater in the polar regions during Polar Day at Penn State on March 27, 2015.
Jennifer Miksis-Olds plays recordings of from underwater in the polar regions during Polar Day at Penn State on March 27, 2015. CDT photo
Jennifer Miksis-Olds plays recordings of from underwater in the polar regions during Polar Day at Penn State on March 27, 2015. CDT photo