Biomimicry

As if the ray fishes weren't unusual enough already, it turns out that their sperm is also unique. Scientists have now created a robot inspired by those sperm, which may someday lead to smaller descendants that swim within the human body.

As honeybees collect pollen and nectar from flowers, they repeatedly bend and straighten their abdomens – yet with a minimal amount of friction. Scientists have discovered what makes this possible, and it could have applications in human technology.

Ducks have specialized feathers that keep them from getting too wet. Now, engineers at Virginia Tech have investigated the physics behind how they work and developed synthetic feathers that could help ships glide through the water more easily.

Paramecium and certain other microbes move through liquid by whipping back and forth hairlike appendages known as cilia. Scientists have now developed a new type of synthetic cilia, which could find use in micro-robots and more.

As anyone with arthritis will know, cartilage plays a vital role in allowing our joints to move freely. Scientists have now replicated its qualities in a synthetic self-lubricating material, that only needs occasional infusions of water.

Scientists at Carnegie Mellon University have spent a number of years developing modular snake-like robots for all kinds of purposes, and the latest adaptation sees its serpent-inspired tech headed underwater.

When studying underwater marine life, it helps if you can use a device that doesn't scare the animals by appearing unnatural to them. MIT scientists have created a robo-starfish with that in mind, utilizing a new rapid development system.

A new creation out of Duke University is yet another interesting example of an environmental sensing robot, taking after a dragonfly to skim across water and check for oil spills and other abnormalities, and doing so without any electronics onboard.

Fish have a sensory system known as the lateral line, which allows them to detect movements and pressure gradients in the water. Scientists have now given a robotic fish its own version of that system, letting it determine the best swimming speed.

Although wing-flapping micro-drones do already exist, the things tend to be quite fragile – and thus not ideally suited to real-world use. An experimental new one, however, utilizes a softer mechanism for greatly enhanced durability.

Things can get very chaotic on the ocean floor, making it difficult for underwater robots to keep from being swept away. New research, however, suggests that by copying the structure of the starfish, they could actually be pressed into place.

Although soft robotic graspers may be squishy on the outside, they usually still have hard, unyielding electronic components on the inside. A new and potentially more versatile bio-inspired grasping system, however, is 100 percent soft.