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Two marine biologists share 10 shark facts for kids, as well as why shark attacks happen and why sharks are essential to human survival.
Sharks portal; The pygmy shark (Euprotomicrus bispinatus), the second-smallest of all the shark species after the dwarf lanternshark, is a squaliform shark of the family Dalatiidae, the only member of the genus Euprotomicrus. [2] Their lengths are up to about 25 cm (10 in) for females and about 22 cm (8.7 in) for males. [3]
The tiger shark is the only species in its family that is ovoviviparous; its eggs hatch internally and the young are born live when fully developed. [7] Tiger Sharks are unique among all sharks in the fact that they employ embrytrophy to nourish their young inside the womb. The young gestate in sacks which are filled with a fluid that nourishes ...
George H. Burgess, the former [165] director of the International Shark Attack File, "describes [shark] culling as a form of revenge, satisfying a public demand for blood and little else"; [166] he also said shark culling is a "retro-type move reminiscent of what people would have done in the 1940s and 50s, back when we didn't have an ...
Like many other sharks, blue sharks are countershaded: the top of the body is deep blue, lighter on the sides, and the underside is white. The male blue shark commonly grows to 1.82 to 2.82 m (6.0 to 9.3 ft) at maturity, whereas the larger females commonly grow to 2.2 to 3.3 m (7.2 to 10.8 ft) at maturity. [ 8 ]
When the shark feels threatened, it will bend its body into a U–shape, grab its tail fin with its mouth, and suck in water. [2] Doing so causes the shark to enlarge in diameter and makes it much harder for predators to bite or dislodge. [2] [4] The swell shark is capable of swelling by using water or air, which is stored in the stomach until ...
The silky shark (Carcharhinus falciformis), also known by numerous names such as blackspot shark, gray whaler shark, olive shark, ridgeback shark, sickle shark, sickle-shaped shark and sickle silk shark, is a species of requiem shark, in the family Carcharhinidae, named for the smooth texture of its skin.
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