Transmogrifier ...

Now he is a wild horse, galloping through the hills and meadows, his brown flowing mane flittering in the breeze.

Then, now, he is a furry little creature, gnawing gently on a tasty nut, twitching his fluffy tail. 

He turns into a wise old owl, his large eyes filled with unfathomable kindness, under those all knowing eyebrows.

Oh, now he is a gorgeous dragon, orange, and all ablaze, taunting to be tamed and ridden on.

and then, now he is a bright doggy, all soft and squishy and cuddly and warm - toungey and licky.  

Now a silverback gorilla, pushing and tossing away gargantuan fallen trees to clear a path.

and he is a rocky mountain goat, unfazed by the steepest of heights, defying gravity like it's his second nature.

How does he change into all these so effortlessly?

Does he possess the magical fish hook of Maui? The shape-shifting demigod of the wind and sea and master of wayfinding?

umm, no; He regularly chutes himself through the ...