Given the question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What creature attacked Jake's avatar? Title: Avatar Movie plot: Opening scene: a camera sweeps high across the treeline of a lush, green world. Intercut is a sequence of images of Jake Sully (Sam Worthington), a crippled war veteran and former Marine. He wakes up in a giant spaceship on its way to Pandora, a lush Earth-like moon orbiting Polyphemus, a blue planet similar to Jupiter. He is one of a large number of passengers, all waking up after almost six years of cryosleep en route to Pandora. Drifting out of his sleeping pod in zero G he's tended by the ship's staff. He opens his locker, which is marked SULLY T. Then, through voice-over and flashback with hospital and military officials, we learn that Jake has a deceased twin brother -- Tom, a scientist -- who was to be part of a high-level program overseen by corporate and military strategists. Because Jake and his brother are an exact genetic match, he was presented with a unique opportunity: take over his brother's contract with a corporate-military entity and travel light years away to an outpost on the previously glimpsed world, Pandora. Acknowledging the notions of "being free" and having a "fresh start," Jake agrees to the deal as his brother's body is cremated.Now being transported from the spaceship to Pandora via a shuttle, Jake is one of many soldiers and civilian personnel about to touch down on Pandora, some 4.3 light years from Earth. We catch views of the base and its construction and immense mining machines digging up the soil in a large quarry as Jake ponders his new role. The passengers are all instructed to wear a full-face breathing mask since the atmosphere of the planet will not support human life; 20 seconds of exposure to the poisonous atmosphere of the planet causes unconsciousness, with death occurring about four minutes later. While the other passengers disembark and take their first steps onto the base, called "Hell's Gate," which is surrounded by a huge perimeter fence. Jake follows them in his wheelchair, earning the moniker "Meals on Wheels" from a few haughty Marines. He acknowledges...
The answer is:
Can't answer