Автор:Waring Rob Год: 2008 Издание:Heinle/Cengage Learn Страниц: [не указано] ISBN: 9781424021918 Orangutans are animals that are similar to humans in many ways. One similarity is their ability to communicate through language. This ability is being studied in a program at a zoo in Washington, D.C. What is the purpose of this program? How does it work?