.The amount of change that they have had between 5 to 6 weeks is HUGE. We continue to try to have new experiences each day. They had their first bath & blow dry at 6 weeks old. We introduced manding ( sitting when a human is in front of them to ask for something, whether it is attention, food, etc) and they quickly took to it. They are beginning to get a lot of energy compared to the previous week and their play sessions are more intense. They have LOVED visitors at this age.