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Fig. 2 | The Science of Nature

Fig. 2

From: Spiders in space—orb-web-related behaviour in zero gravity

Fig. 2

In 2011, two Trichonephila clavipes spiders were brought to the ISS in separate habitats, where their web building could be observed for almost 2 months under zero-gravity conditions. At the same time, two spiders were kept in identical habitats on the ground. a Symmetric web built in zero gravity (7th web of spider B, asymmetry = −0.23, regularity = 3.9). b Asymmetric web built in zero gravity (5th web of spider B, asymmetry = −0.53, regularity = 7.4). c Web built after 23 days in zero gravity (19th web of spider B, asymmetry = −0.16, regularity = 1.3); this web was quite chaotic (which was typical for later webs built in zero gravity) and not well visible due to the build-up of dirt on front glass and rear of habitat. d Web of control spider built in normal gravity (4th web of spider D, asymmetry = −0.83, regularity = 7.5). For descriptions on how asymmetry and regularity were assessed, see text

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