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Gulper sharks can have long resting periods between pregnancies. [2] They are ovoviviparous, meaning the only parental care they give their young is during the incubation period. [5] Since not all oocytes form into pups, when a pup or two is formed inside the female, they eat the remaining fertilized eggs, known as oophagy. [2]
Desert Spider, Stegodyphus lineatus, one of the best-described species that participates in matriphagy Matriphagy is the consumption of the mother by her offspring. [1] [2] The behavior generally takes place within the first few weeks of life and has been documented in some species of insects, nematode worms, pseudoscorpions, and other arachnids as well as in caecilian amphibians.
Histotrophic ("tissue eating") viviparity: The zygotes develop in the female's oviducts, but she provides no direct nutrition. The embryos survive by eating her eggs or their unborn siblings. Hemotrophic ("blood eating") viviparity: The zygotes are retained within the female and are provided with nutrients by her, often through some form of ...
In some cases — bull sharks, mako sharks and baby sand tiger sharks, for example — sharks will even eat their own species. But cases of large sharks eating other large sharks, the subject of ...
The entire body of a shark is a very efficient eating machine. Each organ has been fine-tuned for hunting and acquiring food. Skip to main content. 24/7 Help. For premium support please call: 800 ...
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Fin skeletons are elongated and supported with soft and unsegmented rays named ceratotrichia, filaments of elastic protein resembling the horny keratin in hair and feathers. [32] Most sharks have eight fins. Sharks can only drift away from objects directly in front of them because their fins do not allow them to move in the tail-first direction ...
Young sharks are typically born at a length of 32.5–50.0 cm (12.8–19.7 in) and weigh 127–350 g (0.280–0.772 lb). [14] There is an atypical record of a female, caught off Mumbai , carrying a fetus only 23.7 cm (9.3 in) long that was already nearly fully developed, long before gestation was complete. [ 24 ]