The "teen" book I'm sharing with my KidLit Club tonight is Half Brother (2010) by Canadian author, Kenneth Oppel. Ben is thirteen when his scientist parents decide to raise a young chimp as a human child in their home. Can they teach Zan to communicate using ASL? Ben grows to deeply love his chimp brother and takes extraordinary measures when the project is abruptly ended. Loosely based on Project Nim, a chimp research project in the 1970's, Kenneth Oppel explores not just the controversy surrounding animal testing, but also the bigger concepts of family and making choices. Excellent book!