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The thresher sharks have an extreme example of this tail in which the upper lobe has evolved into a weapon for stunning prey. Bottom-dwelling sharks such as catsharks and carpet sharks have tails with long upper lobes and virtually no lower lobe. The upper lobe is held at a very low angle, which sacrifices speed for maneuverability.
Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pectoral fins into broad flat wing-like appendages. The anal fin is absent. The eyes and spiracles are located on top of the head.
Many sharks can contract and dilate their pupils, like humans, something no teleost fish can do. Sharks have eyelids, but they do not blink because the surrounding water cleans their eyes. To protect their eyes some species have nictitating membranes. This membrane covers the eyes while hunting and when the shark is being attacked.
Sharks variously appear in video games, arcade games and pinball machines. In video games, they typically appear either as playable characters or threats to the player. [4] Sharks also make cameo appearances in some popular games and game series. The 1975 movie Jaws and its sequels inspired several licensed and unlicensed games.
Florida fishing regulations and fishing season opening and closing dates: Golden tilefish: Harvest closes March 1 in federal waters of the South Atlantic. Season re-opens Jan. 1, 2025.
The bluntnose sixgill shark (Hexanchus griseus), often simply called the cow shark, is the largest hexanchoid shark, growing to 20 ft (6.1 m) in length. [2] It is found in tropical and temperate waters worldwide and its diet is widely varied by region.
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New video obtained by TMZ and verified by NBC News captured the moment after a shark bit a 10-year-old Maryland boy who was on vacation in the Bahamas.