NPR News: What Does It Take To Map A Walrus Hangout? 160 Years And A Lot Of Help

What Does It Take To Map A Walrus Hangout? 160 Years And A Lot Of Help
Groups of walruses are vulnerable to disturbances, but it's hard to avoid them if you don't know where they are. A new tool from U.S. and Russian researchers draws on history to protect the animals.

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Làm đẹp Blog 247 August 17, 2016 at 09:49PM
Category Health & Science