The conversation examines how language, like biological life, evolves through mechanisms akin to mutation, drift, and selection. Features such as grammatical overspecification mirror extravagant traits like the peacock’s tail—shaped more by cultural attraction than utility. Vestigial linguistic elements persist like junk DNA, sometimes reviving in new contexts. While much of language change is driven by unconscious drift rather than design, social identity can accelerate divergence, similar to speciation. The discussion extends to Proto-Indo-European, not as a pure root but a hybrid amalgam, reflecting the inherently mixed nature of both genetic and linguistic lineages. Ultimately, both fields reveal deep patterns: languages and species alike stem from common ancestors and evolve through blending, chance, and non-functional ornamentation, illuminating a shared logic underlying life and speech.