Add Yahoo as a preferred source to see more of our stories on Google. The wonderful sound of birdsong is one of nature's most purest pleasures. However, some birds have taken it to the extreme. Meet ...

At first I suspected they didn’t borrow from any particular bird species, Susan. I thought the electronic “chirp” may have been created out of thin air by engineers using computers. All that’s needed ...

While working in my yard and enjoying this amazing fall weather, the sounds of birds were a welcome delight. I love to hear the chirping and singing of various birds on my wooded property. I may not ...

Birds do it and so do doughnut-shaped fusion facilities called 'tokamaks.' But tokamak chirping -- a rapidly changing frequency wave that can be far above what the human ear can detect -- is hardly ...