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Blacktip sharks can temporarily lose almost all their colors during blooms, or "whitings", of coccolithophores. [11] This species attains a maximum known length of 2.8 m (9.2 ft), though 1.5 m (4.9 ft) is more typical, and a maximum known weight of 123 kg (271 lb). [6]
The common blacktip shark (pictured) is nearly identical in appearance to the Australian blacktip shark. Physically, the Australian blacktip shark can only reliably be distinguished from the common blacktip shark by the number of vertebrae (174–182 total, 84–91 before the tail in C. tilstoni, 182–203 total, 94–102 before the tail in C. limbatus).
The blacktip reef shark has also been known to become aggressive in the presence of bait, and may pose a threat while attempting to steal the catches of spear fishers. [3] The blacktip reef shark is a normal catch of coastal fisheries, such as those operating off Thailand and India, but is not targeted or considered commercially important. [9]
The basking shark is a massive creature, growing up to 40 feet (12 meters) long, and is among the largest fish in the world — second only to the whale shark. Basking sharks are also endangered.
Oceanic whitetip shark: Carcharhinus longimanus (Poey, 1861) Critically endangered 3 m (9.8 ft) Hardnose shark: Carcharhinus macloti (J. P. Müller & Henle, 1839) Near threatened 1.1 m (3.6 ft) Blacktip reef shark: T Carcharhinus melanopterus (Quoy & Gaimard, 1824) Vulnerable 1.6 m (5.2 ft) maximum 1.8 m (5.9 ft) Dusky shark: Carcharhinus obscurus
Dangerous animals news: 8-foot shark is eaten by a predator. But who's the culprit? Also, 5-foot gator found in carcass of Burmese python in Florida.
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The blacktip tope (Hypogaleus hyugaensis), also known as pencil shark or blacktip topeshark, is a houndshark of the family Triakidae, and the only member of the genus Hypogaleus. It is found in the deep waters of the continental shelf in the Indo-West Pacific , from East Africa to Japan , at depths between 40 and 230 m.