The helicoradian (Na'vi name: 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. The Na'vi use leaves of the helicoradian for ornate ceremonial robes as well as other garments, tents, and sacks. Orange…