Editing Bubble ring (section)

==Cetaceans==
[[Cetacean]]s, such as [[beluga whale]]s, [[dolphin]]s and [[humpback whale]]s, blow bubble rings. Dolphins sometimes engage in complex play behaviours, creating bubble rings on purpose, seemingly for amusement.<ref>{{cite web |url=http://www.deepocean.net/deepocean/index.php?science09.php |title=The physics of bubble rings and other diver's exhausts |access-date=2006-10-24 |url-status=dead |archive-url=https://web.archive.org/web/20061006163548/http://www.deepocean.net/deepocean/index.php?science09.php |archive-date=2006-10-06 }}</ref> There are two main methods of bubble ring production: rapid puffing of a burst of air into the water and allowing it to rise to the surface, forming a ring; or creating a toroidal vortex with their [[Fluke (tail)|flukes]] and injecting a bubble into the [[Helix|helical]] vortex currents thus formed. The dolphin will often then examine its creation visually and with sonar. They will sometimes play with the bubbles, distorting the bubble rings, breaking smaller bubble rings off of the original or splitting the original ring into two separate rings using their beak. They also appear to enjoy biting the vortex-rings they have created, so that they burst into many separate normal bubbles and then rise quickly to the surface. Dolphins also have the ability to form bubble rings with their flukes by using the reservoir of air at the surface.<ref>{{cite web |url=http://www.bubblerings.com/bubblerings/media.cfm |title=Bubble rings: Videos and Stills |access-date=2006-10-24 |url-status=dead |archive-url=https://web.archive.org/web/20061011195647/http://www.bubblerings.com/bubblerings/media.cfm |archive-date=2006-10-11 }}</ref>

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| video1 = [https://www.youtube.com/watch?v=WLhaPQvCExs&ab_channel=BBCEarth Dolphins react to bubble rings] ''BBC Earth''
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<gallery mode="packed" style="float:left" heights="180px">
File:Delphinapterus leucas Bubble Ring.JPG|[[Beluga whale]]s blowing bubble rings in [[Shimane Aquarium]]
File:Humpback-bubble-spiral Olson.jpg|Aerial view of a [[Humpback whale|humpback]] [[Humpback whale#Feeding and predators|bubble net]]
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Humpback whales use another type of bubble ring when they forage for fish. They surround a [[Shoaling and schooling|school]] of [[forage fish]] with a circular [[Humpback whale#Feeding and predators|bubble net]] and herd them into a [[bait ball]].<ref>{{cite news
|first=Deb
|last=Acklin
|title= Crittercam Reveals Secrets of the Marine World
|url=http://news.nationalgeographic.com/news/2002/06/0624_020624_TVbubble.html
|archive-url=https://web.archive.org/web/20020627064217/http://news.nationalgeographic.com/news/2002/06/0624_020624_TVbubble.html
|url-status=dead
|archive-date=June 27, 2002
|publisher= National Geographic News
|date=2005-08-05
|access-date=2007-11-01 }}</ref>