as the title says whats the reason biologically speaking why they don't live very long? i'm not talking about after they breed they die because even without mating they don't live very long do they, i had been informed on another forum it is because they have a high metabolic rate "Their cells turn over molecules more quickly, metabolizing sugars and fats and proteins in order to grow quickly. All of that rapid action leads to the production of free radicals and oxidative damage." is this correct? and if so is there a way we can slow don't there metabolism?