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Physical characteristics of sharks – shark skeleton, respiration and skin Dermal denticle – small outgrowths which cover the skin of sharks; Ampullae of Lorenzini – sensing organ that helps sharks and fish to sense electric fields; Electroreception – the biological ability to perceive electrical impulses (see also Ampullae of Lorenzini)
Sharkbook is a global database for identifying and tracking sharks, particularly whale sharks, using uploaded photos and videos.In addition to identifying and tracking sharks, the site allows people to "adopt a shark" and get updates on specific animals.
The Lamniformes (/ ˈ l æ m n ɪ f ɔːr m iː z /, from Greek lamna "fish of prey") are an order of sharks commonly known as mackerel sharks (which may also refer specifically to the family Lamnidae). It includes some of the most familiar species of sharks, such as the great white [1] as well as less familiar ones, such as the goblin shark ...
The sandbar shark itself preys on fish, rays, crabs, and molluscs. [7] They have also been found to primarily consume osteichthyes, or bony fish, octopi, european squid, and cuttlefish when in areas such as the Mediterranean or the Gulf of Gabés. [8] Sandbar sharks have been described as being a top predator in their ecosystem's food chain. [9]
The Galapagos shark can be distinguished from the dusky shark in having taller first and second dorsal fins and larger teeth, and it can be distinguished from the grey reef shark in having a less robust body and less pointed first dorsal fin tip. However, these characters can be difficult to discern in the field.
In southern Australia, shark is commonly used in fish and chips, [132] in which fillets are battered and deep-fried or crumbed and grilled. In fish and chip shops, shark is called flake. In India, small sharks or baby sharks (called sora in Tamil language, Telugu language) are sold in local markets. Since the flesh is not developed, cooking the ...
Salmon sharks get their name from their diet, which primarily consists of salmon. It is known for its ability to maintain stomach temperature (homeothermy), [4] which is unusual among fish. This shark has not been demonstrated to maintain a constant body temperature.
The pancreas of the shark helps with digestion by producing the enzymes needed to break down large chunks of food, and the pancreas serves to help keep the metabolism at a fast pace to accommodate for the large amounts of food taken in. [18] At the very end of the short intestine lies the rectal gland which is important for the excretion waste ...