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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.
This was the first common style of shark tooth, present in the Devonian, four hundred million years ago. [10] Sharks with needle-like teeth commonly feed on small to medium-sized fish, sometimes including small sharks.
The maximum weight of the shark is 158.8 kg (350 lb). [1] Differentiating species of sharks is usually done by locating and measuring their fins. The tail is one third of the entire body size. The second dorsal fin and the anal fin of Carcharias are very large and about equal in size.
Palaeocarcharodon, also known as the pygmy white shark, is a genus of shark within the family Otodontidae [1] that lived about 61.7 to 55.8 Ma during the Paleocene. It currently contains a sole species P. orientalis .
Unprovoked attacks by sharks declined sharply in 2024, according to new figures from an international database compiled by the Florida Museum of Natural History. Shark attacks declined sharply in ...
Shark skeletons are very different from those of bony fish and terrestrial vertebrates. Sharks and other cartilaginous fish (skates and rays) have skeletons made of cartilage and connective tissue. Cartilage is flexible and durable, yet is about half the normal density of bone. This reduces the skeleton's weight, saving energy. [29]
Former Rep. Charlie Dent (R-Pa.) said he voted for Vice President Harris in the 2024 presidential election and went after her opponent, former President Trump, saying he was “unfit” to serve ...
Stormers cruised past Sale Sharks to claim a bonus-point victory and kickstart their Investec Champions Cup campaign in round three. The South African side failed to register a single point in ...
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