Do ray fish have lungs?
Like its shark relations, stingrays breathe with the help of gills. They have a row of five gill slits located on the underside of their bodies. Their gills have membranes covered with thin sheets of soft tissue containing millions of blood vessels.Jan 5, 2021
Like its shark relations, stingrays breathe with the help of gills. They have a row of five gill slits located on the underside of their bodies. Their gills have membranes covered with thin sheets of soft tissue containing millions of blood vessels.Jan 5, 2021
