124). The theory does so by analyzing the evolution of fitness components, so-called life history traits, and how they interact: size at birth; growth pattern; age and size at maturity ...

He adds that this process plays a key role in evolution. As cells live in this ... Over time, building and breaking down these unstable components within our cells uses up materials and energy ...

"We might be inclined to think that these components were added by natural ... "At some point during evolution, the gene ...