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The tail of a shark consists of the caudal peduncle and the caudal fin, which provide the main source of thrust for the shark. Most sharks have heterocercal caudal fins, meaning that the backbone extends into the (usually longer) upper lobe. The shape of the caudal fin reflects the shark's lifestyle, and can be broadly divided into five categories:
The genus and family name derive from the Greek word ἀλώπηξ, alṓpēx, meaning fox. As a result, the long-tailed or common thresher shark, Alopias vulpinus, is also known as the fox shark. [5] The common name is derived from a distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself.
The bigeye thresher (Alopias superciliosus) is a species of thresher shark, family Alopiidae, found in temperate and tropical oceans worldwide.Like the other thresher sharks, nearly half its total length consists of the elongated upper lobe of the tail fin.
In the mid-19th century, the name "fox" was mostly superseded by "thresher", referencing the shark's flail-like use of its tail. This species is often known simply as thresher shark or thresher; Henry Bigelow and William Schroeder introduced the name "common thresher" in 1945 to differentiate it from the bigeye thresher (A. superciliosus). [7]
The common name refers to its distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself. Cetorhinidae: Basking sharks: 1 1 The basking shark is the second largest living fish, after the whale shark, and the second of three plankton-eating sharks, the other two being the whale shark and megamouth shark.
Over the past several months, viewers have submitted videos of what appears to be a giant shark fin popping out of the water near the beaches in the Tampa Bay Area. The Florida Fish and Wildlife ...
Quoy and Gaimard chose the name Carcharias melanopterus, from the Greek melas meaning "black" and pteron meaning "fin" or "wing", in reference to this shark's prominent fin markings. [ 4 ] Subsequent authors moved the blacktip reef shark to the genus Carcharhinus ; in 1965 the International Commission on Zoological Nomenclature designated it as ...
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