Figure 2.

Average pairwise relatedness between aggregated timber rattlesnakes. Overall denotes average pairwise relatedness (r) across all snakes, all hibernacula; all pregnant females represent all pairs of females aggregated at birthing rookeries; pregnant female pairs denote most highly related pairs in aggregations with more than two pregnant females; all individuals denote all individuals aggregated during ingress to and emergence from (abbreviated as i/e) hibernacula; juveniles pairs denote juveniles aggregated during i/e; same cohort juv pairs represent same-age juvenile pairs aggregated during i/e. Significant values denoted by *p < 0.05, **p < 0.001.