Volume VII: Nature — Chapter 8: Biology of Xha'Ruun — Deep Evolution

Full-body realistic portrait of a six-limbed Xha’Ruun on a stone terrace — Adult Xha’Ruun: two legs, two lower arms and an upper pair of membranous vexes. Three eyes, four ears and bronze chromatophore skin.

"Three sexes, two hearts, four lungs — nature does not create excess. In every organ — millions of cycles of evolution, in every cycle — an answer to the challenge of the environment." — Anatomical Treatise, Academy

Related sections: → see [Ch.05, "The Xha'Ruun Species"]

8.1 Hexapodalism

6 limbs: 2 lower (locomotion), 2 middle (primary manipulators), 2 upper (membranous vexes). Lower — three-toed. Middle — four-toed. Upper — three-toed with claws.

8.2 Three Sexes

Sex	Symbol	Proportion	Function
Male	♂	15%	Genetic material
Female	♀	20%	Eggs, gestation
Neuter	⚲	65%	Care, labor, social structure

End of Chapter 8, Volume VII.