Hiasl, a 26-year-old male chimpanzee looks through the glass at his enclosure at an animal sanctuary in Voesendorf, south of Vienna, on Friday, May 4, 2007. Austrian animal rights advocates are waging an unusual court battle to get the chimpanzee legally declared a “person.” Hiasl’s supporters argue that he needs that status to become a legal entity who can receive donations and get a guardian to look out for his interests. (AP Photo/Lilli Strauss)