Given their crucial life in our ecosystem by helping to pollinate flowers, bees are pretty darn important. But with a continuing radical population decline of bees around the world, it may be up to robots to step in and lend a helping hand. That is the mission of an unusual project taking place at Poland's Warsaw University of Technology. For the past four years, researchers there have been working to build robotic bees, called B-Droids, which they hope can carry out some of these tasks. More: Harvard scientists just figured out how to make their robotic bee'perch' on objects to save energy Through various iterations of the project, the robots have grown increasingly sophisticated -- from early wheel-based bots which used computers to find nearby flowers to the latest version, a quadcopter able to move from flower to flower taking pollen samples.