Nematodes leap from one soil particle to another using built up surface tension to catapult themselves.

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References

"Surface tension gets put to use by a nematode, which leaps from one soil particle (through air) to another. It holds itself in a U-bent spring with a drop of water; failure of the droplet to stay together straightens it suddenly enough to catapult the nematode upward and laterally (Dusenbery 1996)." (Vogel 2003:449-450)

"The mechanism enabling entomopathogenic [insect parasitic] nematodes (Steinernema spp.) to jump is described. Jumping performance is measured and the contribution of jumping to host finding is estimated. We used the entomopathogenic nematode Steinernema carpocapsae as a model species for the genus. Nematodes jump using a two-step process of forming and contracting a loop. During loop formation, the nematode bends the anterior half of its body until the head region makes contact with the side of the body. The two body regions are held fast by the surface tension of the water film covering the nematode. When the loop is contracted, the body becomes contorted so that the cuticle kinks. This extreme bending generates and stores sufficient energy that when the surface-tension force is broken the nematode is propelled through the air. The nematode (0.558 mm in length) can jump a distance of 4.8 ± 0.8 mm (mean ± SEM) and a height of 3.9 ± 0.1 mm. The contribution of jumping to host finding varies among species and is related to the foraging strategy used by each species." (Campbell and Kaya 1999:1947)

Note: The video in the gallery shows the general action, but the organism is unknown.

Book
Comparative Biomechanics: Life's Physical World, Second EditionJune 17, 2013
Steven Vogel

Book
Life at Small Scale: The Behavior of Microbes (Scientific American Library)September 1, 1996
David B. Dusenbery

Journal article
Mechanism, kinematic performance, and fitness consequences of jumping behavior in entomopathogenic nematodes (Steinernema spp.)Can. J. Zool.July 27, 2002
James F. Campbell, Harry K. Kaya

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