locomotion

Flying robots do have advantages over their ground-going counterparts, but they're not very energy-efficient. A new bot addresses that tradeoff by using a wing-assisted mechanism to hop instead of walking or flying in the traditional sense.

If a robot is being used to gather data in sensitive aquatic environments, it shouldn't have a whirring propeller that could harm wildlife or get caught in weeds. A new bot addresses that issue by utilizing a swimming mechanism inspired by flatworms.

Steering a wheelchair can be a strenuous, inefficient process, in that you have to brake with one rear wheel while pushing harder on the other. A clever new chair addresses that problem in a brilliant fashion, by using a moveable backrest to steer.

Despite what you might say when drunk, you’re not the best backflipper in the world. That honor belongs to a tiny little bug called a globular springtail, whose superfast backflips have now been caught on slow-motion camera for the first time.

Snails are great at climbing vertical surfaces, even though they have just a single wet suction-cup foot. A new robot climbs walls by mimicking that simple yet effective mechanism, although thankfully it leaves a trail of water instead of mucus.

You might think that having four legs with wheels on the ends would already make a robot pretty useful. China's LimX Dynamics is taking things further, however, as its W1 quadruped robot is now able to stand up and walk on two "feet."

If a soft-bodied robot uses rigid actuators to move its body, then it isn't really soft now, is it? An experimental new caterpillar-inspired bot gets around that conundrum by using soft, collapsible origami segments to squirm and steer its way into our hearts.

Even though snails are slow and slimy-bottomed, they've inspired a new type of robot that could be quite useful. Groups of these bots can operate independently or join together in order to perform tasks that would otherwise be impossible.

A new underwater robot can swim through the water with fins, and walk or crawl along the bottom when necessary. These capabilities could really give it a leg up – pun fully intended – at outperforming its traditional thruster-powered counterparts.

It might look hilarious in motion, but this remarkable aerial drone extends its battery life from a few minutes up to a full hour by bouncing around on a springy pogo tail. That incredible efficiency makes it attractive for a wide range of missions.

A three-legged robot could one day be hopping across the surface of asteroids, searching for valuable minerals. Known as the SpaceHopper, the bot was recently put to the test on a zero-gravity aircraft flight.

Danish scientists have developed an origami snake robot that could one day search for survivors at disaster sites, or even explore other planets. The device moves via rectilinear locomotion, just like real snakes often do.