[tfb]

My dog can do this. Sadly he was tied to a tree for years before I got him, which is probably how he figured it out. I'll walk him and on extremely rare occasions he will accidentally wrap around a pole or something, and when he realizes he doesn't have any slack, he immediately unwraps himself. I also say "on extremely rare occasions" because somehow he figured out that if there's a tree/pole ahead, he should stay between myself and the tree/pole to avoid ever wrapping around it to begin with. The only times he will go on the wrong side is if he's preoccupied with a smell or something, and even then, he never actually fully wraps around it, as he almost always realizes he should immediately go the other way.

He was never formally trained to do this. :)

[agumonkey]

Maybe some species are faster than other in realizing it, or psychologically more prone to take action rather than wait for help passively.

Quite often 'intelligence' is linked in desire to try things. Mice can get stuck when deprived of some confidence inducing hormones while the confident group will keep trying.