Short-lived and fast aging species are great choices to screen anti-aging interventions: chemical substances, physical factors, biological additions. Once an effect is noticed on short-lived species, gradual-aging ones can be used to test what you screened. And where do you start when you want to screen interventions? You start from those species that ‘know’ what they’re doing: negligibly senescent and long-lived ones. The secret sauce here is big data.