Biomimicry

It was just two years ago that a tiny robotic manta ray became the world's fastest-swimming soft-bodied robot. Well, one of its descendants has now smashed that record – and it uses less energy than its predecessor, to boot.

While autonomous flying robots have some intriguing potential applications, their usefulness is limited if they can't move across uneven terrain once they land. A new bio-inspired bot can do so, however, by mimicking the gait of the raven.

Even if you don't know what 3D microfluidic networks are, that doesn't change the fact that they have some very valuable possible uses. Scientists have now devised a much easier method of making the things, by taking casts of plant roots.

If you're a surfer who doesn't want to be attacked by great white sharks, your surfboard should be as dark and stealthy as possible … right? Perhaps not, as a new Australian study suggests that a lit-up board may be better at keeping the sharks away.

When disaster strikes, drones and robots can be sent into danger zones to scout for survivors. The RoBoa from a student team at ETH Zurich is designed to snake its way through debris that would stop other solutions in their tracks.

Ice wreaks havoc on surfaces, but we might have a new way to prevent it building up. Scientists at Northwestern University have shown that textured surfaces with thin layers of graphene oxide can stay completely frost-free for long periods.

Mahle has been hard at work on next-gen e-drive systems, and it's also been exploring other electrification components. It has revealed a thermal management fan that borrows from nature to provide smoother, quieter, more efficient performance.

Pangolins already dig in the dirt, so why not get them planting trees while they're at it? Well, training them would be pretty hard, which is why a California high school student named Dorothy designed a pangolin-inspired robot to do the planting.

Tubular structures that fold flat for storage may not take up much room in that form, but they also tend not to be very strong when deployed. That isn't a problem with an experimental new type of tube, that's inspired by both origami and bamboo.

Ordinarily, if you want liquid to flow in only one direction through a pipe, that pipe has to have a flap-type valve – which could fail. Now, scientists have created a new type of more robust one-way-flow pipe, which was inspired by shark intestines.

Sensors such as EEG electrodes can help save a person's life, but the adhesive patches used to attach them may also harm that person's skin. An experimental new medical patch addresses that issue by utilizing octopus-inspired suckers.

Soft materials and stiff materials both have their uses, but the two properties typically aren't seen in one substance. RoboFabric is an exception, then, in that it can be switched back and forth between soft and stiff states.