灰色真鲨 Dusky shark
（重定向自Carcharhinus obscurus）
灰色真鲨（学名：Carcharhinus obscurus）为真鲨科真鲨属的鱼类。分布于美洲东西岸沿海、非洲西岸及东南岸沿海、亚洲东南方沿海及澳洲东西岸沿海、主要在南北纬40度之间以及台东外海等。该物种的模式产地在北美洲。
Carcharhinus obscurus
中文百科
英语百科
Dusky shark 灰色真鲨
（重定向自Carcharhinus obscurus）
The dusky shark (Carcharhinus obscurus) is a species of requiem shark, in the family Carcharhinidae, occurring in tropical and warm-temperate continental seas worldwide. A generalist apex predator, the dusky shark can be found from the coast to the outer continental shelf and adjacent pelagic waters, and has been recorded from a depth of 400 m (1,300 ft). Populations migrate seasonally towards the poles in the summer and towards the equator in the winter, traveling hundreds to thousands of kilometers. One of the largest members of its genus, the dusky shark reaches 4.2 m (14 ft) in length and 347 kg (765 lb) in weight. It has a slender, streamlined body and can be identified by its short round snout, long sickle-shaped pectoral fins, ridge between the first and second dorsal fins, and faintly marked fins.
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