Solving a longstanding puzzle among bird experts, scientists have found that the sharp, violin-like sounds of a South American songbird come not from the beak but from a suite of specially evolved, vibrating feathers.
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Solving a longstanding puzzle among bird experts, scientists have found that the sharp, violin-like sounds of a South American songbird come not from the beak but from a suite of specially evolved, vibrating feathers.
As you see you can't call me a professional blogger, I only spreading information that I came to know from other web sites. So I think you can call me a utility blogger ;)
1 comments:
dats vry nice video
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