Fig. 2.

Partial correlation of cadmium levels on maximum life span (MLS) taking into account body mass for data obtained on wild animals based on CEETV database (see “Methods” and Supplement 1). Renal cadmium (Cd) content correlates with maximum life span (MLS) in wild mammals whereas the correlation is not significant in liver (A). No significant correlations are seen in birds (B). Tissue Cd content and species MLS were log10-transformed. Sample size, Pearson correlation coefficients, and p-values are indicated for each analysis. Regression lines for plots with p < 0.05 are indicated in red