Editing Addax (section)

===Adaptations===
[[File:Addax-1-Zachi-Evenor.jpg|thumb|Addaxes grazing in dry conditions]]
The addax is amply suited to live in the deep desert under extreme conditions. It can survive without free water almost indefinitely, because it gets moisture from its food and dew that condenses on plants. Scientists{{who|date=December 2015}} think the addax has a special lining in its stomach that stores water in pouches to use in times of [[dehydration]]. It also produces highly concentrated [[urine]] to conserve water.<ref name=arkive>{{cite web|title=Addax|url=http://www.arkive.org/addax/addax-nasomaculatus/#text=All |work=Wildscreen |publisher=ARKive|access-date=20 June 2012 |archive-url=https://web.archive.org/web/20120618050555/http://www.arkive.org/addax/addax-nasomaculatus/#text=All#text=All |archive-date=18 June 2012|url-status=dead|df=dmy-all}}</ref> The pale colour of the coat reflects radiant heat, and the length and density of the coat helps in [[thermoregulation]]. In the day the addax huddles together in shaded areas, and on cool nights rests in sand hollows. These practices help in dissipation of body heat and saving water by cooling the body through evaporation.<ref name=Krausman2007/>

In a study, eight addaxes on a diet of grass hay (''[[Chloris gayana]]'') were studied to determine the retention time of food from the digestive tract. It was found that food retention time was long, taken as an adaptation to a diet including a high proportion of slow fermenting grasses; while the long fluid retention time could be interpreted to be due to water-saving mechanisms with low water turnover and a roomy rumen.<ref name=hummel>{{cite journal |last=Hummel |first=J. |author2=Steuer, P. |author3=Südekum, K.-H. |author4=Hammer, S. |author5=Hammer, C. |author6=Streich, W. J.|author7=Clauss, M.|title=Fluid and particle retention in the digestive tract of the addax antelope (''Addax nasomaculatus'') — Adaptations of a grazing desert ruminant|journal=Comparative Biochemistry and Physiology A|year=2008 |volume=149 |issue=2 |pages=142–149 |doi=10.1016/j.cbpa.2007.11.001 |pmid=18083600 |url=http://www.zora.uzh.ch/2368/2/CBP_Addax_Passage_2008V.pdf |access-date=21 March 2019 |archive-date=5 July 2017 |url-status=live |archive-url=https://web.archive.org/web/20170705110034/https://www.zora.uzh.ch/2368/2/CBP_Addax_Passage_2008V.pdf}}</ref>