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Published online 11 June 2008 | Nature | doi:10.1038/news.2008.885
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Eye-damaged mice lose sight of the time
Mice lacking some retinal cells have an altered body clock.
Mice with specific light-sensing cells removed from their retinas can see perfectly well but can't tune their body clock, scientists have shown. The discovery provides more evidence that light detection by the retina is crucial for mammals to stay on a 24-hour circadian cycle.
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