Sunday, September 16, 2012
Hot Days and No Escape at the Beach
On a side note, Guitarfish, while ray-like in form, are in their own family. They largely feed on crustaceans and other invertebrates as well as carrion (dead fish, etc.) that can be foraged out of the sand. The Shovelnose Guitarfish is found from central California clear down to the Sea of Cortez. They apparently have magnetic particules in receptors in their head (the vestibular receptors); it is not known if these particles assist in detecting prey or are for more general orientation purposes.