Re: Why can parrots live to over one hundred years

Interesting question!!
The reason why animals, not only parrots, live longer in captivity is that 
in nature, the sick, injured, smaller and weaker animals usually get 
predated on and weeded out from the pack, this process is called natural 
selection. 
In captivity they live in an environment which rules out this selection 
process. Constant food supply, veterinarian attention and no competition 
means that we humans are giving them a lifestyle which allows them to 
reach a ripe old age.
This applies to any animal that is taken into captivity, although there is 
a small probability that a wild animal taken into captivity could die of 
stress, this usually happens within a few days, and pretty rarely.  

Rochelle.