autoevolution 6 Jun 2021, 10:25 UTC · by Inspired by nature, a group of researchers from the University of Seville in Spain has developed autonomous bird-like robots that can flap their wings, fly, perch, and more. Their ultimate goal is to use the robots for places that rotorcraft cannot reach. 5 photos Usually, on a full charge, a drone can fly around 20 to 30 minutes. This new technology that professor Anibal Ollero, an electrical engineer at the University of Seville in Spain, and his team want to implement would double that numer. In order to increase the flight time, the team plans to use the wind and airflows.