Built-in polarizers form part of a compass organ in spiders
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Dacke, M; Nilsson, D; Warrant, Eric; Blest, A; Land, M F; O'Carroll, D C
Description
Some insects and vertebrates use the pattern of polarized light in the sky as an optical compass. Only a small section of clear sky needs to be visible for bees and ants to obtain a compass bearing for accurate navigation. The receptors involved in the polarization compass are confined to a small part of the retina, and the eyes are built predominantly for other visual tasks. Here we report the discovery of a unique compass organ in the spider Drassodes cupreus, where a pair of specialized...[Show more]
Collections | ANU Research Publications |
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Date published: | 1999 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/94523 |
Source: | Nature |
DOI: | 10.1038/46773 |
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01_Dacke_Built-in_polarizers_form_part_1999.pdf | 268.8 kB | Adobe PDF | Request a copy |
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