Fig. 2. Jumping on water by the giant water striders, Gigantometra gigas. (IMAGE)
Caption
Fig. 2. Jumping on water by the giant water striders (Gigantometra gigas) An ad-hoc “field laboratory” arranged in the natural habitat of the giant water striders (Gigantometra gigas) to film their jumping (a), and the comparison of a frame from the high-speed movie of the giant water strider jump (b) with a similar frame of the “typical” smaller water strider, Gerris latiabdominis (c). The “laboratory” consists of a white sunlit screen made of white bedsheet on a frame, transparent box with water on which the water striders brought from a nearby stream are made to jump, and a high-speed camera on a tripod to film the jumping. The arrows highlight the difference between the larger and smaller species: the giant water strider legs break the surface and move in the water surrounded by air bubble (b), while the smaller water striders do not break the surface (c). Photos/movie frames by the authors of the paper: PGJ, JH, WK.
Credit
Piotr Grzegorz Jablonski, Jungmoon Ha, Woojoo Kim
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Requested: acknowledgement of credits and link to the original publication: https://www.pnas.org/doi/10.1073/pnas.2219972120
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