At 4 weeks these puppies have adapted well to eating softened food, the litter tray and longer time periods without mama. They interact so well with each other and now that they have found their "bark" they love to use it to get the attention of their litter mates. If that doesn't work, chewing on someone's ear is bound to get a reaction. Weather permitting, they may even get some time outside on the deck this week. Lots of fun, lots of changes!