That one scene at the beginning of animated animal movies

Mojito was standing at the mouth to the den, just inside its lip. His parents and siblings were, as far as he was aware, still asleep behind him. It had been only a short while since his parents had started letting them out of the den, fully supervised of course, but the pup was insatiably curious, like most children his age. Still, he wasn't going to leave the den without permission from his parents, at least not yet. Instead, the eager puppy stared out at the world beyond, pale blue gaze bright with excitement and his tail beating the air behind him.

Mojito's paws pounded against the ground as he did a little excited dance, unable to keep his energy in. The boy wanted to explore! He wanted to be allowed to learn all the cool new things beyond the den but he also didn't want to disobey his parents. A small conflicted whine escaped him before he tried to clamp down on it, not wanting to wake anyone else.