Variation in tooth size and shape. A varied, omnivorous, diet is possible. Mobile limb joints, giving a wide range of limb movement. Five digits on hands and feet. Nails, not claws.
Opposable thumbs enable grasping.
Many quadrapedal, but most sit upright. Some bipedal, freeing hands for other activity. Internal fertilisation, long gestation. Long period of parental care. Social groups usually well developed.