WebBroadnose sevengill: Blunt, rounded snout; 7 gill slits. Sharpnose sevengill: Pointed snout; 7 gill slits. 1.2 OPEN OCEAN 1.2.1. Thresher sharks (family Alopiidae) Large oceanic sharks with a characteristically long upper tail lobe, which is used for catching prey. 3 species in W.A. Grey, blue-grey or purple dorsal surface, white ventral surface. WebJan 22, 2024 · Blue sharks are carnivorous predators that feed mainly on squid, other cephalopods, and fish. They have been known to eat other sharks, cetaceans (whales and porpoises), and seabirds. The sharks will feed anytime within a 24-hour period, but are most active in the early evening and at night.

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WebFeb 13, 2024 · The whale shark also eats small and large fish and mollusks, including sardines, anchovies, mackerels, squid, and even small tuna and albacore. Reproduction and longevity Although the whale … WebApr 30, 2024 · 1) Seawater is forced into the throat. Using photos, they measure the size of a whale shark’s wide open mouth. They calculate the amount of water that enters as the shark swims or as it sucks at the surface of the ocean. 2) Filter pads catch food. 7g rainbow colony songs download mobcup

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WebLarger sharks can eat larger mollusks, like octopus or squid. Hammerhead sharks, in particular, eat a lot of squid and octopus. Researchers have even found some sharks with squid beaks still in their stomachs! Sharks that hunt mollusks do it in various ways. When they’re shelled, sharks use special flat teeth to crush their prey. WebOn average, most sharks have five gills. However, some shark species may have up to 7 gills. These gills are present on either side of the shark’s head. The gills of a shark are held in place by gill arches. Some shark varieties like the frilled sharks or sixgill sharks have six gills. Seven gills is also common among some shark varieties. 7g rainbow colony songs download starmusiq