Most of the pups have their eyes open fully, and they can hear now. If Lassen comes near the box and one pup wakes up,it's no longer a secret. The puppies stumble about after her; Cory described them as little zombies... "fresh milk!!!"
They are starting to interact with each other, only for seconds at a time, but its a glimpse at what's to come. At this point, they are still sleeping almost all of the time.