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These are the 20 biggest and scariest birds on Earth (and yes, some of them do attack humans)

Wondering about the most dangerous birds on Earth? We've compiled this list of the Top 20 scariest birds — some that have ...
Live Science

Scientists study 100 possible alien radio signals from collapsed Arecibo Observatory, ending groundbreaking 21-year search

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...