👉 Polyphylesis is a biological term used to describe the phenomenon of the same species having multiple distinct lineages. This occurs when a species has multiple populations with different genetic traits, which are linked genetically through a common ancestor and may be related by lineage but not necessarily by descent. The term "polyphylesis" was first coined in 1936 by Charles Darwin to describe the complex relationship between different species within a single genus. It refers to the fact that many species share similar