Drones are designed to fly, but crashes are a fact of life, whether because of external forces or pilot error. Some commercial drones employ techniques like propeller guards to at least protect the drone, or humans nearby, but they’re not exactly effective all the time. More industrially-inclined drones even have “cages” that protect them but also make them bigger and heavier. Researchers from École Polytechnique Fédérale de Lausanne, or EPFL, in Switzerland may have come up with an actually effective solution. Unsurprisingly, their inspiration came from Mother Nature herself.