Fatty acid contents for a range of tissues from endothermic and exothermic species. (A) Mitochondrial saturated fatty acids. (B) Monounsaturated fatty acid. (C) Polyunsaturated fatty acids. (D) Docosahexaenoic acid. The data are graphical displays of the fatty acid content detailed in Table 2. These data have not undergone statistical analysis, as described in the main text. DHA, docosahexaenoic acid; FA, fatty acid; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid; SFA, saturated fatty acid.