Centaur Aliens
Lifespan: 80 years
Adult weight: 500-1000 kg
Adult height: 2.5-4 meters
Visual range: near infrared to blue
Diet: Obligate hypercarnivores
Centaurs’ evolutionary ancestors were savanna pack predators who used ambush to hunt prey, nomadically following prey animal herds as they traveled round the global continent every year. Modern centaurs emerged when they started to use tools to help with hunting and land management, eventually resulting in some groups settling down and becoming reliant on fishing, animal agriculture, and food preservation to survive. Centaurs remain obligate hypercarnivores, meaning approximately 70% of a healthy diet is meat and animal products, but they opportunistically supplement their diet with grain, starchy tubers, and small amounts of roughage and vegetation.
Similar to humans, centaurs have a bisex reproductive system with an inseminator sex and gestator sex who gave birth to live young, but functionally are more akin to Earth’s marsupials. Centaur’s distant ancestors had larvae that lived in the soil like grubs before pupating into adults, and their viviparous silk eating clade first emerged after parental care of the larval stage evolved. While other members of their clade have development and pupation both happen in-utero, centaur litters leave the womb early and feed on their parent’s nutritive silk until they are large enough to pupate, spinning a cocoon on their parent’s back. They emerge as an imago, resembling a miniature adult with the physical capacity of an six-week old kitten.
Centaurs are pseudo-eusocial, with a social structure hierarchy somewhat similar to meerkats. At its most basic level a clan consists of one matriarch, a female who is responsible for bearing the clan’s young; the entourage, who are the matriarch’s partners and usually mostly male; and the clan’s “workers,” who are not involved in reproduction. These non-reproductive clan members are generally either the matriarch’s children, childless relatives, or individuals married in for their skills or political purposes.
Read more about centaur biology on my janky eternally work-in-progress website here, or look at the old centaur reference post here.
