The medical mystery began 16months ago after the death of the Atlantic blacktip shark.

这个医学之迷起于十六个月之前，大西洋黑鳍鲨死了。

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The medical mystery began 16months ago after the death of the Atlantic blacktip shark named Tidbit at the Virginia Beach aquarium.

这个医学之迷起头于十六个月之前，在维吉尼亚海滨水族馆名为珍闻的黑鳍鲨死了。

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Blacktip reef sharks (Carcharhinus melanopterus), although widespread around the Pacific, appear to have small ranges within their home reef system.

黑鳍礁鲨虽然广泛分布于太平洋，但似乎只是生活在其周围很小范围内的暗礁群。

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This would seem to be good news for the warm water-loving Australian blacktip.

FORBES: Finding Big Foot, Finding Global Warming

Other species such as blacktip reef sharks did not show this behaviour.

BBC: Sharks navigate using 'mental maps'

Nevertheless, the Australian blacktip realizes that too much of its favored warm water might at some point in the future become a bad thing.

FORBES: Finding Big Foot, Finding Global Warming