Sea fish 3D print model

Fish is an aquatic vertebrate with no amniotic membrane, gills, swimming fins and a hard skull, but no limbs or fingers. Fishes can be grouped into the more basic jawless fishes and the more common jawed fishes, the latter group including all living cartilaginous and bony fishes, as well as the extinct placoderms and echinoderms. strain . Most fish are cold-blooded animals, their body temperature varying with the surrounding water, although some large active swimmers such as white sharks and tuna can keep their core temperatures higher .