Jellyfish that can swim and fly. Or maybe it’s swim or fly:

The biggest draws at Festo’s Hannover Fair exhibits have been biologically inspired robotic creatures that show off cutting-edge automation technologies. Turning once again to nature for inspiration, the company’s engineers this year came up with robotic jellyfish that either swim or fly.

Whether they swim or fly, these two types of jellyfish steer themselves by carefully controlled weight shifts. As Fischer explains, their bodies contain a servo-driven swash plate connected to a four-armed pendulum that changes their center of gravity. “The pendulum shifts their weight, and they move in a new direction,” he says.

Take the first link for a video.