species theory

Species theory refers to the scientific understanding of what defines a species, typically as a group of organisms that can interbreed and produce fertile offspring in nature. It emphasizes reproductive isolation, meaning species remain distinct because they don't commonly exchange genes with others. This concept helps scientists classify and understand biodiversity, evolutionary relationships, and how new species form over time through processes like divergence and adaptation. In essence, species theory provides a framework for identifying and studying the diversity of life by focusing on reproductive boundaries and genetic continuity within groups.