Figure 5. We observed a preponderance of free fatty acids which were more abundant in the bat mitochondria across both tissue types. Docosapentaenoic acid, Docosahexaenoic acid and Arachidonic acid were each found to be significantly higher abundance in both bat muscle and brain mitochondria. YMB – Young mouse muscle, OMM – Old mouse muscle, OBM – Old bat muscle, YMB – Young Mouse Brain, OMB – Old Mouse Brain, BB – Bat Brain. ns p>0.05, * p<0.05, ** p<0.01, *** p<0.001, **** p<0.0001. See Supplementary Table 5 for statistical tests and values. Stats: Kruskall-Wallis to compare between Bat, young muscle and old muscle (three groups). Then a Dunn’s multiple comparisons test to compare between two groups.