In addition to all of the above, this exersaucer includes a playmat for those ages and moods when a baby might prefer to lie down and play and an activity table to play with at later developmental stages. (tinyfry.com)
As preschool children are just learning to coordinate their social behavior, their interactions are often short and marked by frequent squabbles, and friendships are less stable than at later developmental stages. (psychology.jrank.org)
«We anticipate that if we were to look at the activity of HARs that are enhancers during later developmental stages, we would see even more differences between humans and chimpanzees.» (gladstone.org)