Stock footage video of of Pacific Lampreys underwater hanging on to the glass with their strong sucking mouths

underwater footage tridentate lamprey rhythmic long movement elongated body eels teeth elongated bodies mouth lampreys fish dorsal fins sucking pacific underwater close up fish ladder freshwater jawless fish threetooth micropredatory lakes petromyzontidae biology filter feeding suckers spawn species ecosystem life patterns scaleless lifecycle animals anadromous migratory animals creatures gills metamorphosis coastal jawless parasitic stone licker classification life cycle clusters research habitat oregon