News tagged with photoreceptor

Scientists solve mystery of the eye

( -- Scientists have a good overall understanding of human vision: when light enters our eyes, it is focused by the lens and strikes the retina in the back of the eye. The light causes some of the millions of ...

dateNov 17, 2011 in Biochemistry feature
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Circadian clocks in a blind fish

Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A ...

dateSep 06, 2011 in Cell & Microbiology
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Experts reveal why plants don't get sunburn

( -- Experts at the University of Glasgow have discovered how plants know when to make their own sunscreen to protect themselves from the harmful rays of the sun. Scientists have speculated for decades that plants ...

dateApr 01, 2011 in Cell & Microbiology
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