by University of Wisconsin Sea Grant Institute · 2 episodes
ScienceMedicineNatural
These sounds were collected during fieldwork by Chris Bocast on the Wolf River in 2011 and 2012.
16 Aug 2012
It is believed the raps are produced by the sturgeon clicking their gills.
Sturgeons use their whole body to vibrate their swim bladders and create the very low 'thunder' drumming sounds.
