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In contrast, adelphophagy is the cannibalism of a multi-celled embryo. [1] Oophagy is thought to occur in all sharks in the order Lamniformes and has been recorded in the bigeye thresher (Alopias superciliosus), the pelagic thresher (A. pelagicus), the shortfin mako (Isurus oxyrinchus) and the porbeagle (Lamna nasus) among others. [1]
Mackerel sharks, also called white sharks, are large, fast-swimming sharks, found in oceans worldwide. They include the great white, the mako, porbeagle shark, and salmon shark. Mackerel sharks have pointed snouts, spindle-shaped bodies, and gigantic gill openings. The first dorsal fin is large, high, stiff and angular or somewhat rounded.
The individual can become a resource: food (cannibalism); a protective buffer against aggression, or a prop to obtain maternal experience. The form of exploitation in non-human primates most attributable to adult females is when non-lactating females take an infant from its mother ( allomothering ) and forcibly retain it until starvation.
The sand tiger shark (Carcharias taurus), grey/gray nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger, is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf , from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft ...
Filial cannibalism occurs when an adult individual of a species consumes all or part of the young of its own species or immediate offspring. Filial cannibalism occurs in many species ranging from mammals to insects , and is especially prevalent in various types of fish species with males that engage in egg guardianship. [ 1 ]
A Louisiana aquarium welcomed a baby shark born under mysterious conditions, the aquarium said Friday. The swell shark, nicknamed Yoko, hatched on Jan. 3, according to the Shreveport Aquarium .
Siblicide (attributed by behavioural ecologist Doug Mock to Barbara M. Braun) is the killing of an infant individual by its close relatives (full or half siblings). It may occur directly between siblings or be mediated by the parents, and is driven by the direct fitness benefits to the perpetrator and sometimes its parents.
The frilled shark eats a diet of cephalopods, Nudibranchs, smaller sharks, and bony fish; [2] 60 percent of the diet is composed of squid varieties, such as the Chiroteuthis, the Histioteuthis, and the Onychoteuthis, the Sthenoteuthis and the Todarodes; [17] and other sharks, as indicated by the stomach contents of a 1.6 m (5.2 ft)–long ...