Talk:Asymmetry

message: I would like to take a crack at doing a major rewrite of this article.  If anyone would like to comment/discuss before hand, please drop me a note or comment here.  Thanks! HEL 21:54, 3 November 2006 (UTC)
thread_title:  Planning a rewrite 

message: Okay, I've basically rewritten the whole article.  Comments, criticisms, improvements most definitely wanted!  Several sections still need work: the introduction, the biology section, and the chemistry section in particular.  My original motivation for doing this was to create the subsection on asymmetries in particle physics collider experiments.  HEL 18:49, 11 November 2006 (UTC)
thread_title: Images

message: It would be nice to include the following images in this article:
* A picture of a halibut (or other flatfish) showing clearly the way its two eyes are on one side of its body.  The pictures in the main halibut article aren't clear enough. HEL 16:51, 11 November 2006 (UTC)
thread_title:  Images wanted! 

message: The introduction to this article needs to be rewritten.  Any volunteers, please  be bold!  HEL 18:10, 11 November 2006 (UTC)
thread_title:  Introduction needs work 

message: # Not clearly written.
# What can be understood appears fantastic.
# Many factual errors, eg, constant reference to "progressive" organisms, a term with no meaning in evolutionary biology. The "three basic asymmetries found in physical processes" - which are? According to who? "a consequence of asynchronous evolution and occurs in time." what does not occur in time? What is asynchronous evolution?
This needs to be completely re-written and referenced if it is to go in an article. Tim Vickers 22:15, 2 August 2007 (UTC)
thread_title: Problems with these sections

message: Under the 'in organsims' heading it could be good to add some causes of aymmetries in humans including how environmental events during development can cause asymmetry, through things like infectious disease, low food quantity and quality, toxins and poisons. Can also include how genetic events during development can cause asymmetry, through things like inbreeding and spontaneous mutations. --AH2960 (talk) 23:01, 31 January 2016 (UTC)
thread_title:  Causes of asymmetry  

message: Under the "evolution of asymmetry in organisms" subheading it may be important to mention the different types of asymmetries amongst organisms – that being fluctuating asymmetry (FA) and directional asymmetry (DA) (and possibly a few more). For FA a brief mention of what it is could be stated linking that text to the FA Wikipedia page.
For DA one could describe what DA is and give examples: Van Valen in 1962 defined directional asymmetry (DA) as occurring when ‘there is normally a greater development of a character on one side of the plane or planes of symmetry than on the other’. 
Researchers have argued that the level of asymmetry variance has a genetic basis, therefore is not a measure of developmental instability.Palmer, A.R. & C. Strobeck. 1986. Fluctuating asymmetry: Measurement, analysis, patterns. Annual Review of Ecology and Systematics 17:391-421. Palmer, A. R. 1994. Fluctuating asymmetry analyses: A primer. pp. 335-364.  DA is common in animals and humans for example, the mammalian heart depicts a greater structure on the left side, variance in size of antlers in a reindeer and testes size in many vertebrates.  — Preceding unsigned comment added by Janepatel (talk • contribs) 17:00, 2 February 2016 (UTC)
thread_title:  Types of asymmetry