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- Sleep_in_fish abstract "Whether fish sleep is an intriguing question, to the point of having inspired the title of several popular science books. In birds and mammals, sleep is defined by eye closure and the presence of typical patterns of electrical activity in the brain, including the neocortex, but fish lack eyelids and a neocortex. Some species that always live in shoals or that swim continuously (because of a need for ram ventilation of the gills, for example) are suspected never to sleep. There is also doubt about certain blind species that live in caves.Other fish seem to sleep, however, especially when purely behavioral criteria are used to define sleep. For example, zebrafish, tilapia, tench, brown bullhead, and swell shark become motionless and unresponsive at night (or by day, in the case of the swell shark); Spanish hogfish and blue-headed wrasse can even be lifted by hand all the way to the surface without evoking a response. On the other hand, sleep patterns are easily disrupted and may even disappear during periods of migration, spawning, and parental care.".
- Sleep_in_fish thumbnail Astronotus_ocellatus.jpg?width=300.
- Sleep_in_fish wikiPageID "43384469".
- Sleep_in_fish wikiPageLength "17372".
- Sleep_in_fish wikiPageOutDegree "54".
- Sleep_in_fish wikiPageRevisionID "682348673".
- Sleep_in_fish wikiPageWikiLink Atlantic_mackerel.
- Sleep_in_fish wikiPageWikiLink Bergall.
- Sleep_in_fish wikiPageWikiLink Bluefish.
- Sleep_in_fish wikiPageWikiLink Bluehead_wrasse.
- Sleep_in_fish wikiPageWikiLink Bonito.
- Sleep_in_fish wikiPageWikiLink Brown_bullhead.
- Sleep_in_fish wikiPageWikiLink Burbot.
- Sleep_in_fish wikiPageWikiLink Category:Ichthyology.
- Sleep_in_fish wikiPageWikiLink Category:Sleep.
- Sleep_in_fish wikiPageWikiLink Category:Sleep_physiology.
- Sleep_in_fish wikiPageWikiLink Cave.
- Sleep_in_fish wikiPageWikiLink Circadian_rhythm.
- Sleep_in_fish wikiPageWikiLink Circadian_rhythms.
- Sleep_in_fish wikiPageWikiLink Convict_cichlid.
- Sleep_in_fish wikiPageWikiLink Cyprinidae.
- Sleep_in_fish wikiPageWikiLink Damselfish.
- Sleep_in_fish wikiPageWikiLink File:Astronotus_ocellatus.jpg.
- Sleep_in_fish wikiPageWikiLink Goldfish.
- Sleep_in_fish wikiPageWikiLink Hagfish.
- Sleep_in_fish wikiPageWikiLink Halichoeres_bivittatus.
- Sleep_in_fish wikiPageWikiLink Homeostasis.
- Sleep_in_fish wikiPageWikiLink Ictaluridae.
- Sleep_in_fish wikiPageWikiLink Lamprey.
- Sleep_in_fish wikiPageWikiLink Largemouth_bass.
- Sleep_in_fish wikiPageWikiLink Mozambique_tilapia.
- Sleep_in_fish wikiPageWikiLink Naked-back_knifefish.
- Sleep_in_fish wikiPageWikiLink Neocortex.
- Sleep_in_fish wikiPageWikiLink Parrotfish.
- Sleep_in_fish wikiPageWikiLink Pelagic.
- Sleep_in_fish wikiPageWikiLink Pelagic_zone.
- Sleep_in_fish wikiPageWikiLink Rainbow_cichlid.
- Sleep_in_fish wikiPageWikiLink Requiem_shark.
- Sleep_in_fish wikiPageWikiLink Requiem_sharks.
- Sleep_in_fish wikiPageWikiLink Salmon.
- Sleep_in_fish wikiPageWikiLink Sculpin.
- Sleep_in_fish wikiPageWikiLink Shark.
- Sleep_in_fish wikiPageWikiLink Slippery_dick.
- Sleep_in_fish wikiPageWikiLink Smallmouth_bass.
- Sleep_in_fish wikiPageWikiLink Spanish_hogfish.
- Sleep_in_fish wikiPageWikiLink Swell_shark.
- Sleep_in_fish wikiPageWikiLink Swellshark.
- Sleep_in_fish wikiPageWikiLink Tautog.
- Sleep_in_fish wikiPageWikiLink Tautogolabrus_adspersus.
- Sleep_in_fish wikiPageWikiLink Tench.
- Sleep_in_fish wikiPageWikiLink Thalassoma_bifasciatum.
- Sleep_in_fish wikiPageWikiLink Three-spined_stickleback.
- Sleep_in_fish wikiPageWikiLink Threespine_stickleback.
- Sleep_in_fish wikiPageWikiLink Tilapia.
- Sleep_in_fish wikiPageWikiLink Tuna.
- Sleep_in_fish wikiPageWikiLink White_sucker.
- Sleep_in_fish wikiPageWikiLink Wrasse.
- Sleep_in_fish wikiPageWikiLink Zebrafish.
- Sleep_in_fish wikiPageWikiLink File:Wooden_plate.jpg.
- Sleep_in_fish hasPhotoCollection Sleep_in_fish.
- Sleep_in_fish wikiPageUsesTemplate Template:Diversity_of_fish.
- Sleep_in_fish wikiPageUsesTemplate Template:Reflist.
- Sleep_in_fish subject Category:Ichthyology.
- Sleep_in_fish subject Category:Sleep.
- Sleep_in_fish subject Category:Sleep_physiology.
- Sleep_in_fish hypernym Question.
- Sleep_in_fish type Work.
- Sleep_in_fish comment "Whether fish sleep is an intriguing question, to the point of having inspired the title of several popular science books. In birds and mammals, sleep is defined by eye closure and the presence of typical patterns of electrical activity in the brain, including the neocortex, but fish lack eyelids and a neocortex. Some species that always live in shoals or that swim continuously (because of a need for ram ventilation of the gills, for example) are suspected never to sleep.".
- Sleep_in_fish label "Sleep in fish".
- Sleep_in_fish sameAs m.011sql_0.
- Sleep_in_fish sameAs Q18378618.
- Sleep_in_fish sameAs Q18378618.
- Sleep_in_fish wasDerivedFrom Sleep_in_fish?oldid=682348673.
- Sleep_in_fish depiction Astronotus_ocellatus.jpg.
- Sleep_in_fish isPrimaryTopicOf Sleep_in_fish.