Curious Kitty: Cats Love Exploring Cardboard Boxes

This sweet feline just arrived by express mail.

All that you can see of this black cat while she's hiding in her favorite box are her glowing eyes.

Here's a cardboard box that's seriously popular.

This cat wasn't so excited about being found in her favorite box.

Each kitty had her own box in this happy home.

Here's a cat that's positive she's invisible while hiding in this cardboard box.