Just when everything was going smoothly, the yearlings begin to act up.
The big sisters have decided it's time for the pups to see the wide world beyond the den.
Puzzles is not so sure.
With infinite patience, she carries the hostages back inside each time.
But the yearlings are quite insistent.
They soon find that if you kidnap one, the others are sure to follow.
Soon Puzzles relents and lets her pups explore the world within sight of the den.
As the weeks pass, and winter flies by, they venture farther and farther on each outing.
Adult supervision is never far behind, and then, one day, Puzzles decides it's time to leave the den for good.
It's been four months since the pups were born and for the first time, she and all her children run together as a pack.