The evolution of avian senescence patterns: implications for understanding primary aging processes

The comparative longevity of birds and other flying homeotherms is consistent with evolutionary senescence theory, which posits that species with low mortality rates from predation or accident will be released from selection for rapid maturity and early reproduction, and will exhibit retarded aging. Comparative analyses of avian life history parameters to date broadly support an association between low mortality rates, slow reproduction, and long lifespan. The diversity of bird life histories suggests the importance of developing a diversity of avian models for studies of aging mechanisms, both proximate and ultimate, and for using wild as well as domestic representatives. -from Authors