Editing Pygmy sperm whale (section)

==Description==
[[File:Pygmy sperm whale skeleton.jpg|thumb|left|230px|Pygmy sperm whale skeleton]]

The pygmy sperm whale is not much larger than many [[dolphin]]s. They are about {{convert|1.2|m|abbr=on}} at birth, growing to about {{convert|3.5|m|abbr=on}} at maturity. Adults weigh about {{convert|400|kg|abbr=on}}. The underside is a creamy, occasionally pinkish colour and the back and sides are a bluish grey; however, considerable intermixing occurs between the two colours. The shark-like head is large in comparison to body size, given an almost swollen appearance when viewed from the side. A whitish marking, often described as a "false gill", is seen behind each eye.<ref name=Roest1970>{{cite journal | author = Roest, A.I. | year = 1970 | title = ''Kogia simus'' and other cetaceans from San Luis Obispo County, California | journal = Journal of Mammalogy | volume = 51 | issue = 2 | pages = 410–417| jstor=1378507 | doi=10.2307/1378507}}</ref><ref name=Bloodworth2008/>

The lower jaw is very small and slung low.<ref name="www.acsonline.org">{{Cite web |title=Pygmy Sperm Whale |url=https://www.acsonline.org/pygmy-sperm-whale |access-date=2022-04-06 |website=www.acsonline.org}}</ref> The [[Blowhole (anatomy)|blowhole]] is displaced slightly to the left when viewed from above facing forward.<ref name="www.acsonline.org" /> The [[dorsal fin]] is very small and hooked; its size is considerably smaller than that of the dwarf sperm whale and may be used for diagnostic purposes.<ref name="www.acsonline.org" />