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Corals moving north

As oceans warm, reefs off Japan shift to higher latitudes

11:24pm, January 21, 2011

Some Pacific corals have done the equivalent of moving from sunny Atlanta to Detroit, possibly in response to rising ocean temperatures.

A new study of reefs around Japan reveals that a handful of coral species have migrated from the balmy subtropics to temperate climate zones over the last 80 years. The study is the first to track coral reefs for such a long time and over several latitude lines, a Japanese team reports in an upcoming Geophysical Research Letters.

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