Evidence that flies sleep

Their sleep cycle can be different than just their circadian rhythm: if you sleep deprive ’em, they need more sleep. A bunch of molecular similarities, too (i.e. some sleep-related drugs do the same things to flies).

Paul J. Shaw, Chiara Cirelli, Ralph J. Greenspan, and Giulio Tononi. <a href="http://www.sciencemag.org/cgi/content/abstract/287/5459/1834?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&titleabstract=Correlates+of+sleep+and+waking+in+Drosophila+Melanogaster.&searchid=1086901043900_9996&stored_search=&FIRSTINDEX=0&fdate=10/1/1995&tdate=6/30/2004&quot;
Correlates of Sleep and Waking in Drosophila melanogaster.
Science 2000; 287 (5459) : 1834-1837.

Newer review article: Joan C. Hendricks. Genetic Models in Applied Physiology: Invited Review: Sleeping flies don’t lie: the use of Drosophila melanogaster to study sleep and circadian rhythms. J Appl Physiol 94: 1660-1672, 2003. 10.1152/japplphysiol.00904.2002

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