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.