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词汇 Dusky sharks
分类 英语词汇 英语翻译词典
释义

Dusky sharks

原声例句
VOA常速英语_美洲

Among the findings, the dusky shark which is endangered species that was documented off the coast of Australia, a recently discovered orchid species in Bolivia.

在这些发现中，有澳大利亚海岸记录的濒临灭绝的灰色真鲨，还有最近在玻利维亚发现的兰花物种。

CNN 10 学生英语 2017年8月合集

So as some sandbar and dusky sharks showed up for an all you can eat extravaganza.

因此，当一些沙洲和暗色鲨鱼出现时，你可以吃到饱。

英语百科

Dusky shark

A large gray shark swimming over sand and scattered rocks, being shadowed by a smaller fish with a horizontal stripe and a forked tail
World map with dark blue shading from off New England to southern Brazil, in spots along northwestern African and in the Indian Ocean, around southern Africa, off Japan and China, all around Australia, and around Baja California, and light blue shading from Spain to southern Africa, including the western Mediterranean, and off northern Chila
A female dusky shark on display at Sea World, Queensland; this species is found throughout Australian waters.
The dusky shark can be identified by its sickle-shaped first dorsal and pectoral fins, with the former positioned over the rear tips of the latter

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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