Birds 'See' Earth's Magnetic Field
Monday, November 16, 2009 - 13:35
in Biology & Nature
When birds migrate over long distances -- sometimes thousands of miles -- they usually end up in exactly the same place year after year. Such accurate feats of navigation, accomplished by millions of birds every year, have long made scientists wonder how they do it. Now a group of scientists in Germany has experimental evidence that reveals an important part of the secret of birds' navigational success.