Figure 4
From: Fatty acid analysis as a tool to infer the diet in Illinois river otters (Lontra canadensis)
Principal components analysis of fatty acids in Illinois river otters. The data from 60 unique fatty acids projected onto the first two principal components (jointly accounting for 27.8% of the total variance in otter fatty acid profiles). Each data point represents a tissue sample from a single animal. Footpad and tail deposits have largely distinct fatty acid profiles, as there is very little overlap between the two clusters.