A report on Arachnid locomotion

Segments of the legs of a spider.

Various means by which arachnids walk, run, or jump; they make use of more than muscle contraction, employing additional methods like hydraulic compression.

- Arachnid locomotion
Segments of the legs of a spider.

2 related topics with Alpha

Overall
Soft-legged wheel-based robot with terrestrial locomotion abilities

Soft robotics

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Subfield of robotics that concerns the design, control, and fabrication of robots composed of compliant materials, instead of rigid links.

Subfield of robotics that concerns the design, control, and fabrication of robots composed of compliant materials, instead of rigid links.

Soft-legged wheel-based robot with terrestrial locomotion abilities
3D printed model resembling an octopus.
Chris Atkeson's robot that inspired the creation of Baymax

Similar approaches to hydraulic soft joints can also be derived from arachnid locomotion, where strong and precise control over a joint can be primarily controlled through compressed hemolymph.

A grasshopper has an open circulatory system, where hemolymph moves through interconnected sinuses or hemocoels, spaces surrounding the organs.

Hemolymph

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Fluid, analogous to the blood in vertebrates, that circulates in the interior of the arthropod body, remaining in direct contact with the animal's tissues.

Fluid, analogous to the blood in vertebrates, that circulates in the interior of the arthropod body, remaining in direct contact with the animal's tissues.

A grasshopper has an open circulatory system, where hemolymph moves through interconnected sinuses or hemocoels, spaces surrounding the organs.
Above is a diagram of an open circulatory system. An open circulatory system is made up of a heart, vessels, and hemolymph. This diagram shows how the hemolymph is circulated throughout the body of a grasshopper. The hemolymph is first pumped through the heart, into the aorta, dispersed into the head and throughout the hemocoel, then back through the ostia that are located in the heart, where the process is repeated.

It can also be used hydraulically as a means of assisting movement, such as in arachnid locomotion.