The Army currently has about 56,000 paid parachutists, Lt. Gen. Gregory Anderson, senior commander for Fort Bragg and the 18th Airborne Corps, said during an April 9 “From the Green Notebook” podcast.

Inspired by this natural design, the engineers outfitted the RoboBee with its own set of long, double-jointed legs. These new appendages are designed to cushion the impact as the robot transitions ...