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There are four basic types of shark teeth: dense flattened, needle-like, pointed lower with triangular upper, and non-functional. The type of tooth that a shark has depends on its diet and feeding habits. Sharks are a great model organism to study because they continually produce highly mineralized tissues. [2]
The tiger shark ( Galeocerdo cuvier) [ 3] is a species of ground shark, and the only extant member of the genus Galeocerdo and family Galeocerdonidae. It is a large macropredator, with females capable of attaining a length of over 5 m (16 ft 5 in). [ 4] Populations are found in many tropical and temperate waters, especially around central ...
The upper jaw, or maxilla [12] [13] is a fusion of two bones along the palatal fissure that form the upper jaw. This is similar to the mandible (lower jaw), which is also a fusion of two halves at the mandibular symphysis. In bony fish, the maxilla is called the "upper maxilla," with the mandible being the "lower maxilla".
Squalicorax. Squalicorax, commonly known as the crow shark, is a genus of extinct lamniform shark known to have lived during the Cretaceous period. The genus had a global distribution in the Late Cretaceous epoch. Multiple species within this genus are considered to be wastebasket taxon due to morphological similarities in the teeth.
The shark kidney excretes urea that is needed for the shark to have in its system so the shark does not become dehydrated from living in seawater. Sharks hearts have two chambers and the way the heart pumps. The shark heart's main importance is providing oxygenated blood to the entire body while filtering out the deoxygenated blood.
But despite Street's love of shark films, she did not want the ones in hers to be portrayed as marine serial killers. "We kill 100 million sharks every year," she notes. The director was also ...
Jaws: The Revenge. Jaws: The Revenge is a 1987 American horror film produced and directed by Joseph Sargent. The fourth and final film in the Jaws franchise, it stars Lorraine Gary, who came out of retirement to reprise her role from the first two films, along with new cast members Lance Guest, Mario Van Peebles, Karen Young and Michael Caine ...
A Great White Shark swims by the research vessels off the coast of Chatham, Massachusetts, on October 21, 2022. The shark, which was known as set as Bruce, was 25 feet long. The shark was named ...
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