Slow lorises vary in colour from grey to white depending on their range. They are plumper and shorter-limbed than slender lorises. They have strong grasping hands and feet, with opposable thumbs. Slow lorises have dark rings around their eyes and a dark stripe running along the backSlow lorises may not be swift, but they are accomplished climbers and are able to hang from branches by their feet alone.They range across southeast Asia.