Meagan CantwellTo save energy, many insects swivel their head—instead of their entire body—to scan the world around them. Researchers have now replicated this with a tiny camera with a one-of-a-kind arm they can maneuver from a smartphone.
The total system weighs just 248 milligrams—less than a dollar bill.When strapped onto a beetle’s back, the camera can stream video in close to real time.