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The Pseudotriakidae are a small family of ground sharks, belonging to the order Carcharhiniformes, containing the false catsharks (genera Pseudotriakis and Planonasus) and gollumsharks (genus Gollum). It contains the only ground shark species that exhibit intrauterine oophagy, in which developing fetuses are nourished by eggs produced by their ...
These sharks are oviparous; they lay eggs in pairs in which the embryos feed solely on yolk. This species is considered harmless to humans. [2] Magnificent catshark (Proscyllium magnificum) A newly discovered species within the family Proscyllidae, it has little supporting research. It is tan in coloration with dark spots and blotches. [3]
Because SparkNotes provides study guides for literature that include chapter summaries, many teachers see the website as a cheating tool. [7] These teachers argue that students can use SparkNotes as a replacement for actually completing reading assignments with the original material, [8] [9] [10] or to cheat during tests using cell phones with Internet access.
One of the first species of shark to be protected was the grey nurse shark. 1992 cageless shark-diving expedition – first publicized cageless dive with great white sharks which contributed to changing public opinions about the supposed "killing machine"
Scyliorhinidae is a family of sharks, one of a few families whose members share the common name catsharks, belonging to the order Carcharhiniformes, the ground sharks. Although they are generally known as catsharks, some species can also be called dogfish due to previous naming. [ 2 ]
The megamouth shark is an extremely rare species of deepwater shark, and the smallest of the three filter-feeding sharks. Since its discovery in 1976, only a few megamouth sharks have been seen, with 55 specimens known to have been caught or sighted as of 2012, including three recordings on film.
The Lamnidae are the family of mackerel sharks known as white sharks. [2] They are large, fast-swimming predatory fish found in oceans worldwide, though they prefer environments with colder water. The name of the family is formed from the Greek word lamna, which means "fish of prey", and was derived from the Greek legendary creature, the Lamia. [3]
Parotodus inhabited pelagic open oceans like the oceanic whitetip shark. The genus is often regarded as a rare species despite its presence in ocean deposits worldwide. As a result, it is often prized by fossil collectors. Paleontologists believe that Parotodus likely inhabited primarily open oceans like the modern oceanic whitetip shark and ...