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A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
4. Mollies Overview. Size: 3-6 inches Average Lifespan: 3-5 years Caveats: Viviparous, needs plenty of space Cute, speckled molly fish are hardy, generally peaceful, and overall ideal for novice ...
Mark starred as the host Commander Mark, an enthusiastic space man teaching drawing techniques to viewers at home and the on-screen characters Zebtron, Metaman and Cindy the Dragon. The show was broadcast to 11 million PBS viewers each week, far surpassing his original one million student goal. His art style is a cartoon 3D style that is ...
Fish anatomy. Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. [1] In practice, fish anatomy and fish physiology complement each other, the former dealing with the structure of a fish, its organs or ...
Gyotaku eventually evolved into an art form with three different approaches: The direct method (直接法, chokusetsu-hō) is the closest to the original method. The fish is cleaned, prepped, supported, and then inked. At this point, dampened washi ("rice" paper) is applied to the fish, and an image is created by careful hand rubbing or pressing.
Siamese fighting fish were originally given the scientific name Macropodus pugnax in 1849—literally "aggressive fish with big feet", likely in reference to their elongated pelvic fins. [ 14 ] In 1897 they were identified with the genus Betta and became known as Betta pugnax, referring to their aggressiveness.
Fish locomotion. Fish locomotion is the various types of animal locomotion used by fish, principally by swimming. This is achieved in different groups of fish by a variety of mechanisms of propulsion, most often by wave-like lateral flexions of the fish's body and tail in the water, and in various specialised fish by motions of the fins.
According to FishBase about 34,800 species of fish had been described as of February 2022, [5] which is more than the combined total of all other vertebrate species: mammals, amphibians, reptiles and birds. Fish species diversity is roughly divided equally between marine (oceanic) and freshwater ecosystems.