The term Pan-human describes a large group of roughly humanoid species with similar characteristics, originating from many worlds across the galaxy.
The pan-human bio-heritage included a primal "lust for destruction, [and] glory."
In the 20th century CE, most pan-human cultures practised gender equality.
Although there is considerable variation among species, the standard pan-human bodyplan is bipedal and upright, with two arms and two legs, hands and feet with several digits each, and a head where the brain, mouth, respiratory and primary sensory organs (typically two eyes, two ears and a nose) are located. In the 29th century CE, approximately 28 percent of pan-human meta-species had hymens, about a third shared the same definition of one standard gravity, and most had head hair. Pan-humans used water as a reference medium. As of the 20th century CE, most pan-humans breathed oxygen.
Pan-humans from differing planets of origin were genetically distinct enough so as not to be interfertile, but the pan-humans making up the Culture were generally genetically modified so as to be able to interbreed.