Skates and Rays, from above, look quite innocent, but their undersides look like evil masks with blank, staring eyes. In actuality, the 'eyes' are the creature's nostrils, as the eyes are on the other side of the animal. [3] A little creativity and some sewing can make a skate ...
given that the word “exoskeleton” means a skeleton lying on the exterior. There are many types of fish scales, including placoid, ganoid, cycloid, cosmoid, and ctenoid. Scales are small, thin, and cornified structures. They either fit tightly on the body of the animal, and can also o...
shark, any of numerous species of cartilaginous fishes of predatory habit that constitute the order Selachii (class Chondrichthyes). Sharks, together with rays and skates, make up the subclass Elasmobranchii of the Chondrichthyes. Sharks differ from other elasmobranchs, however, and resemble ordinary fi...
Ray, any of the cartilaginous fishes of the order Batoidei, related to sharks and placed with them in the class Chondrichthyes. Rays are distinguished from sharks by a flattened, disklike body, with the five gill openings and the mouth generally located
Seafoodcomprisesall bony fishes and the more primitivesharks,skates,rays,sawfish,sturgeons, andlampreys;crustaceanssuch as lobsters, crabs, shrimps, prawns, and crayfish; mollusks, including clams, oysters, cockles, mussels, periwinkles, whelks, snails, abalones, scallops, and limpets; thecephalopodmo...
fish, any of approximately 34,000speciesofvertebrateanimals(phylumChordata) found in the fresh and salt waters of the world. Livingspecies rangefrom the primitive jawlesslampreysandhagfishesthrough the cartilaginoussharks,skates, andraysto the abundant anddiversebony fishes. Most fish species arecold...
Modern fish of this class lack a swim bladder, and their scales and teeth are made up of the same placoid material. Sharks, skates, and rays are examples of cartilaginous fishes. The bony fishes are by far the largest class. Examples range from the tiny seahorse to the 450-kg (1,000-...
fish, any of approximately 34,000speciesofvertebrateanimals(phylumChordata) found in the fresh and salt waters of the world. Livingspecies rangefrom the primitive jawlesslampreysandhagfishesthrough the cartilaginoussharks,skates, andraysto the abundant anddiversebony fishes. Most fish species arecold...