Showing posts with label science. Show all posts
Showing posts with label science. Show all posts
Tuesday, September 8, 2009
Monarch Butterflies
Just like birds, monarchs migrate south for the winter, traveling between 1,200 and 2,800 miles (at a rate of about 50 miles a day) to their wintering spot in central Mexico. It's thought that they use an internal sun compass to find the way.
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