“…Age structure is being recognized as an important source of information about long‐lived species (Dolan et al., 2023 ; Holmes & York, 2003 ). Although age information is rarely readily available for empirical populations, it is sometimes possible to approximate an individual's age from their phenotype (e.g., turtle scutes and carapace length (Jensen et al., 2018 ; Wilson et al., 2003 ), rattlesnake rattles (Heyrend & Call, 1951 ), tree rings (Shroder, 1980 ), otoliths (Campana, 1999 ), tooth wear (Hinton et al., 2023 ), telomere length (Haussmann & Vleck, 2002 ), DNA methylation (Nakamura et al., 2023 ), coloration (Pyle, 1997 ) etc. ), or population monitoring (Eaton & Link, 2011 ).…”