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標題: Birds 'heard tornadoes coming' and fled one day ahead [打印本頁]

作者: kao1306 時間: 2014-12-26 09:35
標題: Birds 'heard tornadoes coming' and fled one day ahead

[size=1.077em]US scientists say tracking data shows that five golden-winged warblers "evacuated" their nesting site one day before the April 2014 tornado outbreak.

[size=1.077em]Geolocators showed the birds left the Appalachians and flew 700km (400 miles) south to the Gulf of Mexico.

[size=1.077em]The next day, devastating storms swept across the south and central US.

[size=1.077em]Writing in the journal Current Biology, ecologists suggest these birds - and others - may sense such extreme events with their keen low-frequency hearing.

[size=1.077em]Remarkably, the warblers had completed their seasonal migration just days earlier, settling down to nest after a 5,000km (3,100 mile) journey from Colombia.

http://www.bbc.com/news/science-environment-30531060

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