Long-lived mammals contain more phosphorylation sites in the SIRT6 C-terminus that enhance PARP1 interaction and resistance to oxidative stress. - Gigas J; Meadow ME; Guo J; Lan C; Hillpot E; Martinez JC; Tombline G; Bellomio P; Rivera-Almodóvar V; Welle KA; Swovick K; Hryhorenko JR; et al. (GeroScience, 2026)