Hammerhead Sharks


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Hammerhead and bonnethead sharks are the members of the Sphyrnidae family. They are found in tropical and warm-temperate areas around the world. They are easily recognized by having their eyes at the lateral ends of their unique 'hammer-shaped' heads, which may increase their vision. Hammerhead sharks are voracious predators, feeding mainly on fishes, sharks, rays, and bottom-dwelling animals. There are 2 genera and about 10 species worldwide.

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Scientific Name: Sphyrna lewini (Griffith & Smith, 1834)
English Name: Scalloped Hammerhead Shark, Kidney-headed Shark
Mandarin Name: 双髻鲨 (Shuāng jì shā)
Local Malay Name: Yu Sanggul Lintang, Yu Palang, Yu-tukul Sanggul
Main Diagnostic Features: Second dorsal fin small. Pelvic fins with a nearly straight posterior margin. Pectoral fins tipped grey or black. Nostrils with strong prenarial grooves. Hind margins of eyes slightly posterior to or nearly opposite front of mouth.
Size: Maximum total length about 4.2 m; commonly to 3.6 m.