Pressure forces blood from pores: grasshopper

Weak pores in the cuticle of certain grasshoppers ooze blood plasma as the hydrostatic pressure within the grasshoppers' bodies increases.

Biomimicry Taxonomy

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Biomimetic Application Ideas

Hydrostatic pressure pumps.

[Collapse all sections] Summary

"A number of insects also release blood in order to deter predators. Some of the most dramatic examples occur among grasshoppers of the genus Dictyophorus. When threatened, hydrostatic pressure within the grasshopper's body increases, forcing blood plasma out of weak pores in the body's cuticle. As it emerges, the blood mixes with air and converts into a disgusting froth that covers the insect's body surface. The froth contains a repellent so noxious that any creature brave enough to attempt to eat this vile-looking insect soon drops it and beats a hasty retreat. Once alone again, the grasshopper reabsorbs much of its blood by decreasing its body's internal hydrostatic pressure." (Shuker 2001: 130)

About the inspiring organism

Dictyophorus
Dictyophorus

Organism/taxonomy data provided by:
Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist

Bioinspired products and application ideas

Application Ideas: Hydrostatic pressure pumps.

Industrial Sector(s) interested in this strategy: Mechanical engineering

References

Shuker, KPN. 2001. The Hidden Powers of Animals: Uncovering the Secrets of Nature. London: Marshall Editions Ltd. 240 p.

Pressure forces blood from pores: grasshopper

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