Parrots live 80+ years despite high metabolic rates. They break the oxidative stress rule.

A macaw can outlive a human while maintaining the metabolism of a hummingbird. Most small volant birds live 5-15 years. Parrots laugh at that limit. The question is how they combine extreme longevity with the oxidative stress of flight—something that should kill them young. Their answer might rewrite what we think aging requires.