What is a subspecies of human?

A subspecies of human refers to a distinct group within the species Homo sapiens that exhibits specific genetic, morphological, or behavioral differences from other groups. While the concept of subspecies in humans has been largely discredited due to the lack of significant biological differences and the overwhelming genetic similarity among all humans, historically, terms like "Homo sapiens neanderthalensis" have been used to describe Neanderthals as a separate subspecies. However, modern understanding emphasizes that all humans belong to a single species without recognized subspecies.