Unidentified boa constrictor

This boa constrictor was a zoo animal, taken from Brazil, according to its post outside its cage. On Dudley's eleventh birthday, the Dursleys went to the zoo this snake was in with Dudley's best friend Piers Polkiss. Unfortunately for the Dursleys, they had to take Harry with them, as re was no one to take him. Harry quickly found the snake and briefly spoke with it. During the course of their conversation, he unintentionally made the glass of its enclosure disappear. This allowed the snake to slither out of his cage which scared Dudley into thinking it was after him. The freed boa was able to communicate with Harry in Parseltongue, briefly thanking him. From there, the snake calmly slithered out of the reptile house.

Behind the scenes

 * This snake may have been Nagini.

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Philosopher's Stone (film)