WebFins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish.They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks.Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. WebOct 17, 2024 · Do all fishes have tails? Most fish have a homocercal tail, but it can be expressed in a variety of shapes. The tail fin can be rounded at the end, truncated (almost vertical edge, as in salmon), forked (ending in two prongs), emarginate (with a slight inward curve), or continuous (dorsal, caudal, and anal fins attached, as in eels).
Tailed frog - Wikipedia
In many respects, fish anatomy is different from mammalian anatomy. However, it still shares the same basic body plan from which all vertebrates have evolved: a notochord, rudimentary vertebrae, and a well-defined head and tail. Fish have a variety of different body plans. At the broadest level, their body is … See more 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. In practice, fish anatomy and … See more The head or skull includes the skull roof (a set of bones covering the brain, eyes and nostrils), the snout (from the eye to the forward-most point of the upper jaw), the operculum or gill cover (absent in sharks and jawless fish), and the cheek, which extends from the … See more Jaw The vertebrate jaw probably originally evolved in the Silurian period and appeared in the Placoderm fish which further diversified in the Devonian. Jaws are thought to derive from the pharyngeal arches that … See more There are two different skeletal types: the exoskeleton, which is the stable outer shell of an organism, and the endoskeleton, which forms the support structure inside the body. The … See more Fish are vertebrates. All vertebrates are built along the basic chordate body plan: a stiff rod running through the length of the animal (vertebral column or notochord), with a hollow tube of nervous tissue (the spinal cord) above it and the gastrointestinal tract below. … See more Intestines As with other vertebrates, the intestines of fish consist of two segments, the small intestine and the large intestine. In most higher vertebrates, … See more Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused. There may also be a range of … See more WebDec 31, 2011 · See answer (1) Copy. Because they feel like it and that's how they were made.They also have tails because that is the ways the move forward and backward and the way they ca steer there way though ... greyhound florida to ohio
An Underwater Peacock (Eel) - Quality Marine
WebAnswer (1 of 3): It depends what you mean by tail. If you mean a tail fin, then no - seahorses, for example have no tail fin, although the tapering hind end of the body would be easily recognised as a tail by most people. Ocean sunfish come very close to being tailless - they have a flap-like str... WebAdult Aetheretmon fish possessed an asymmetrical tail, longer on the top than the bottom, which contains vertebrae. A group of modern fish called chondrosteans, which includes species such as sturgeon and paddlefish, are sometime referred to as “living fossils” and have a similar tail structure. WebStage 1: The fins and/or tail start show some discoloration, especially on the edges. Depending on the original color of the fish, the discoloration may appear as white, red, or even black. Stage 2: The fin edges look frayed … fidget toy world roblox codes