Human social structures are complex and tend to be hierarchical and family-oriented, though their exact nature varies wildly along ethnic and national lines.
Humans in the Manifold are self-domesticating, as close contact with one another establishes complex webs of social interdependence.
Humans born near (but not within) the Distal Tesseract have large eyes to better cope with reduced visible light conditions; within the Dorsal Tesseract, eyes return to average size due to increased risk of cataracts. Eye color prevalence among a human population is closely related to skin color, as both are functions of melanin-producing alleles. Near the Rostral, Caudal, and Eastern Tesseracts, human eyes, noses, and mouths are smaller and more narrow to protect their moisture from local weather conditions.
Geographic Origin and Distribution
Humans can be found in varying quantities throughout the Manifold, though their largest population centers are located in or near the Medial Tesseract.
Symbiotic and Parasitic organisms
Humans are sometimes infested with Caudal lichens (becoming Verdials over generations) or Distal polyps (causing Distal polyp parasitosis) when exposed to them.
Homo Sapiens Sapiens
Almost all human groups originate from the Medial tesseract, with the central flood plains of Medial A1 presumed to be the original settlement place of humans within the Manifold.
The average height of Humans in the Manifold is slightly below the average of other settings due to the enclosed nature of the Manifold. This insular dwarfism is amplified in the Dorsal and Western Tesseracts, as the terrain in these places tends to be very confining (rugged mountain ranges in the former tesseract and islands in the latter)
The average weight of Humans in the Manifold is slightly below the average of other settings due to the enclosed nature of the Manifold. This insular dwarfism is amplified in the Dorsal and Western Tesseracts, as the terrain in these places tends to be very confining (rugged mountain ranges in the former tesseract and islands in the latter)
Body Tint, Colouring and Marking
Humans born closer to the Dorsal Tesseract tend to be darker in complexion due increased exposure to ultraviolet light; conversely, those born closer to the Medial Tesseract tend to be lighter in complexion due to a paucity of ultraviolet light. Those born close to the Eastern Tesseract tend to be darker than average due to aridity (and commensurate lack of cloud cover) in these environments, and vice versa near the Western Tesseract. Body hair thickness increases with proximity to the Caudal Tesseract and declines with proximity to the Rostral Tesseract due to the need for protection from temperature extremes, though both of these tesseracts are usually more populated with human-adjacent species (Verdials and Rostrans, respectively) than humans themselves.