Birds are definitely on the move. One morning (March 6) I see and hear my first song sparrow of the year, and, on the same day, a little way down the road, a brown creeper sings that 3 or 4 note, high ...
Researchers at the Ecole Polytechnique Fédérale de Lausanne (EPFL) have unveiled a nee robotic drone named Raven (Robotic Avian-inspired Vehicle for multiple ENvironments), inspired by the agile ...
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