Going South: ; Evidence Points to Birds' Ability to See Earth's Magnetic Field Lines
Sunday Gazette-Mail › December 04, 2007
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Summary
CHICAGO - Twice each year the migratory birds of the world make a voyage that, until recently, seemed like an inexplicable miracle.
Now evidence is trickling in to support an explanation no less miraculous: Birds may literally be able to see magnetic fields.See the full content of this document
Extract
Going South: ; Evidence Points to Birds' Ability to See Earth's Magnetic Field Lines
Scientists are only beginning to understand the triumph of bird navigation, which relies in part on using an internal compass to follow the Earth's magnetic fields north or south.
The still-controversial idea that birds use cells in their eyes to see magnetic fields was first proposed by University of Illinois scientists in the 1970s and has gained momentum...See the full content of this document
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