Editing Hammerhead shark (section)

=== Cephalofoil ===
The hammer-like shape of the head may have evolved at least in part to enhance the animal's vision.<ref>{{cite journal|doi=10.1242/jeb.032615 |title=Enhanced visual fields in hammerhead sharks |journal= Journal of Experimental Biology|volume=212|issue=24|pages=4010–8|year=2009|last1=McComb|first1=D. M. |last2= Tricas| first2= T. C.| last3= Kajiura| first3= S. M. | pmid=19946079|doi-access=free|bibcode=2009JExpB.212.4010M }}</ref> The positioning of the eyes, mounted on the sides of the shark's distinctive hammer head, allows 360° of vision in the vertical plane, meaning the animals can see above and below them at all times.<ref>{{cite news | first=D. Michelle | last=McComb | url=http://news.bbc.co.uk/earth/hi/earth_news/newsid_8376000/8376740.stm | work=BBC News | title=Hammerhead shark mystery solved | date=27 November 2009 | access-date=4 May 2010 | display-authors=etal | archive-date=25 February 2010 | archive-url=https://web.archive.org/web/20100225034122/http://news.bbc.co.uk/earth/hi/earth_news/newsid_8376000/8376740.stm | url-status=live }}</ref><ref>{{Cite web|title = World's Deadliest: Hammerhead Sharks|url = http://video.nationalgeographic.com/video/worlds-deadliest/deadliest-hammerhead-shark|website = video.nationalgeographic.com|access-date = 23 May 2015|archive-date = 23 April 2015|archive-url = https://web.archive.org/web/20150423144008/http://video.nationalgeographic.com/video/worlds-deadliest/deadliest-hammerhead-shark|url-status = dead}}</ref> They also have an increased binocular vision and depth of visual field as a result of the cephalofoil.<ref name="Barley 2019">{{cite web | last=Barley | first=Shanta | title=Why the hammerhead shark got its hammer | website=New Scientist | date=26 February 2019 | url=https://www.newscientist.com/article/dn18210-why-the-hammerhead-shark-got-its-hammer/ | access-date=3 March 2021 | archive-date=3 March 2021 | archive-url=https://web.archive.org/web/20210303061234/https://www.newscientist.com/article/dn18210-why-the-hammerhead-shark-got-its-hammer/ | url-status=live }}</ref><ref>{{Cite web |title=Great Hammerhead Shark - Lifestyle, Diet, and More - Wildlife Explained |last=Explained |first=Wildlife |work=Wildlife Explained |date= 5 January 2022|access-date=10 August 2023 |url= https://www.wildlifeexplained.com/great-hammerhead-shark/}}</ref> The shape of the head was previously thought to help the shark find food, aiding in close-quarters maneuverability, and allowing sharp turning movement without losing stability. The unusual structure of its [[vertebra]]e, though, has been found to be instrumental in making the turns correctly, more often than the shape of its head, though it would also shift and provide lift. From what is known about the [[winghead shark]], the shape of the hammerhead apparently has to do with an evolved sensory function. Like all sharks, hammerheads have [[electroreception|electroreceptory]] sensory pores called [[ampullae of Lorenzini]]. The pores on the shark's head lead to sensory tubes, which detect electric fields generated by other living creatures.<ref>{{cite book|last1=Otfinoski|first1=Steven|title=Hammerheads and Other Sharks|date=2000|publisher=World Book, Inc.|isbn=978-0716612100|pages=[https://archive.org/details/hammerheadsother0000otfi_y3q2/page/16 16]|url=https://archive.org/details/hammerheadsother0000otfi_y3q2/page/16}}</ref> By distributing the receptors over a wider area, like a larger radio antenna, hammerheads can sweep for prey more effectively.<ref name= Hammer>{{cite web | first=R. Aidan | last=Martin | title=If I Had a Hammer | work=Rodale's Scuba Diving | date=August 1993 | url=http://www.elasmo-research.org/education/topics/d_functions_of_hammer.htm |publisher=ReefQuest Centre for Shark Research | access-date=31 March 2006 | archive-date=18 February 2019 | archive-url=https://web.archive.org/web/20190218042914/http://www.elasmo-research.org/education/topics/d_functions_of_hammer.htm | url-status=live }}</ref>