- The saturating removal (SR) model of damage accumulation is used to analyze survival data across multiple species.
- Damage production rate is the strongest predictor of lifespan differences, spanning seven orders of magnitude.
- Two aging regimes identified: ballistic aging (production dominates removal) in short-lived species and quasi-steady-state aging (production balanced by removal) in longer-lived mammals.
- Certain parameter combinations, like noise and removal timescale ratios, are conserved across mammals.