This is possible because language is not the only symbolic means of communication. In order to prove that chimpanzees and gorillas are capable of language, and not simply a different kind of symbolic communication system, they must learn a sign language with the basic characteristics of human language.
Definition of Halloween. : October 31 observed especially with dressing up in disguise, trick-or-treating, and displaying jack-o'-lanterns during the evening.
Don't miss the fun at Disneyland Halloween 2017. Celebrate Halloween Disney style from early September through October 31 2017. Wear your Disney Halloween costume and celebrate Halloween at Mickey's Halloween party.