Editing Teleost (section)

=== Sensory systems ===

[[File:Gasterosteus aculeatus with stained neuromasts.png|thumb|A stickleback stained to show the [[lateral line system|lateral line]] elements (neuromasts)]]

{{Further|Sensory systems in fish|Electroreception|Magnetoreception}}

Teleosts possess highly developed sensory organs. Nearly all daylight [[vision in fishes|fish have colour vision]] at least as good as a normal human's. Many fish also have [[chemoreceptor]]s responsible for acute senses of taste and smell. Most fish have sensitive receptors that form the [[lateral line system]], which detects gentle currents and vibrations, and senses the motion of nearby fish and prey.<ref name="Encarta 99">{{cite book |last=Orr |first=James |year=1999 |title=Fish |publisher=[[Encarta|Microsoft Encarta 99]] |isbn=978-0-8114-2346-5 |url-access=registration |url=https://archive.org/details/fearsomefishcree00stev}}</ref> Fish sense sounds in a variety of ways, using the lateral line, the swim bladder, and in some species the Weberian apparatus. Fish orient themselves using landmarks, and may use [[mental map]]s based on multiple landmarks or symbols. Experiments with mazes show that fish possess the [[spatial memory]] needed to make such a mental map.<ref>{{cite web |url=http://juls.sa.utoronto.ca/Issues/JULS-Vol2Iss1/JULS-Vol2Iss1-Review3.pdf |archive-url=https://web.archive.org/web/20110706211428/http://juls.sa.utoronto.ca/Issues/JULS-Vol2Iss1/JULS-Vol2Iss1-Review3.pdf |archive-date=6 July 2011 |title=Appropriate maze methodology to study learning in fish |author=Journal of Undergraduate Life Sciences |access-date=28 May 2009 |url-status=dead}}</ref>