Helicoradian (also known as Loreyu, meaning "beautiful spiral") is a zooplantae (part animal, part plant) possessing a single leaf that responds to touch by coiling up and retracting to the ground. Its neuromuscular system makes it difficult for xenobiologists to classify. Helicoradia can grow to 6-8 meters (20-26 feet) in height and 2.5 meters (8.2 feet) across. Credit: James Cameron’s Avatar: The Game