Answer:
The theory of aging evolution
Explanation:
The theory of aging evolution seeks to investigate the reasons why living beings begin a degeneration process at a certain age, among the various theories proposed is that of <em>Peter Brian Medawar</em> proposed in 1952, who claimed that natural selection avoided these mutations malignant <em>during the reproductive stage</em> to avoid the reduction of the population, however once this stage concluded the selection allowed them to manifest themselves.
I believe Canis familiaris is the closest relative of Canis lupus.
