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Utilization of Polarized Light by Fiddler Crabs

Explore how fiddler crabs use horizontally polarized light in their environment, from waving colored claws to reducing glare with specialized eye structures. Learn how animals benefit from reflective surfaces such as mud flats.

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Utilization of Polarized Light by Fiddler Crabs

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  1. Figure 5 a b Figure 5 Animals living in close association with horizontal reflective surfaces, such as fiddler crabs Uca sp. may experience and utilise a strong horizontally polarised large field. a) Waving coloured and possibly polarised claw. b) In the ventral part of the eye of Uca signata, more vertical than horizontal microvilli are found per band and may reduce glare from horizontal mud flat habitat (After Alkaladi et al 2013).

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