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Complexity Digest 2003.42 - 08
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20-Oct-2003

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Ultraviolet Vision In A Bat, Nature
 









Excerpts: Most mammals, with the exception of primates, have dichromatic vision
and correspondingly limited colour perception. Ultraviolet vision was discovered
in mammals only a decade ago, and in the few rodents and marsupials where it has
been found (...). Bats orient primarily by echolocation, but they also use
vision. Here we show that a phyllostomid flower bat, Glossophaga soricina, is
colour-blind but sensitive to ultraviolet light down to a wavelength of 310 nm.
Behavioural experiments revealed a spectral-sensitivity function with maxima at
510 nm (green) and above 365 nm (ultraviolet).
Source: Ultraviolet Vision In A Bat[
http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v425/n6958/full/nature01971_fs.html
], York Winter, Jorge L& - 37845;ez, Otto Von Helversen, DOI:
10.1038/nature01971, Nature 425, 612 - 614, 09 October 2003

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