A university student nicknamed "Phoenix" uses her laptop inside a wooden hut built on the trees 8.8 meters (29 ft) above the ground at a nature park in Zhengzhou, Henan province May 1, 2009. Two university students, nicknamed "Squirrel" and "Phoenix", aim to stay in the wooden hut for a month beginning April 28 and the only contact they have with other people is through the Internet, local media reported. Picture taken May 1, 2009. REUTERS/Donald Chan (CHINA SOCIETY)