WebThe "tail" in the name is actually an extension of the male cloaca. The tail is one of two distinctive anatomical features adapting the species to life in fast-flowing streams. ... which these frogs do not have. Taxonomy. Until … WebDec 31, 2011 · No. Sharks, being fish, have vertical tails, while whales, being mammals, have horizontal tails. People also asked.
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WebMay 20, 2024 · Even when fish first ventured onto land, they still moved in a side-to-side motion. For example, the 375-million-year-old Tiktaalik roseae, the first fish thought to venture out of the water ... WebFeb 11, 2024 · No, not all fish have tails. In fact, there are four main shapes of tail fins, and not all fish have all of these kinds of fins. However, all bony fish have at least one of … check rera registration mumbai
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WebJan 16, 2024 · The fish will start to form hard cysts to protect themselves, and these cysts are very dark or black, which is where the name comes from. If there are dark spots like this, your fish will also likely start flicking its tail and rubbing against surfaces because of … 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). 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 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 … 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 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, … 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 … 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 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, the small intestine is further divided into the duodenum and other parts. In fish, the … See more WebJan 8, 2012 · If you have ever seen a fish swim, you probably noticed that the front two fins and the tail fin move a lot. You can think of the two front fins like fish arms and the tail fin like fish legs. The front two fins are … check research