My Lexi (3 yo) has been enjoying chasing squirrels in my front yard this summer. The squirrels always dash up a tree before she can get a hold. She's been catching but not eating many chipmunks. Yesterday I noticed that she made an effort to dash between the tree and squirrel, as if she'd learned that success might come by cutting off the escape route. It still got away. Fast forward to a few moments ago. This time when she cut him off, Mr squirrel sat up and looked right in her eyes after she halted about 3 feet from him. And he just looked at her, like he was saying, "as if..." Lexi then walked away toward a bird. Maybe she's gotten scratched by another squirrel. There clearly was some trepidation on her part. Fine with me.