00933cam a2200229 4500 71710407 TxAuBib 20110204120000.0 100226s2010||||||||||||||||||||||||eng|u 2010002696 9780545229258 hardcover 0545229251 hardcover TxAuBib Oppel, Kenneth. Half brother / Kenneth Oppel. 1st ed. New York : Scholastic Press, 2010. 375 p. ; 22 cm. In 1973, when a renowned Canadian behavioral psychologist pursues his latest research project--an experiment to determine whether chimpanzees can acquire advanced language skills--he brings home a baby chimp named Zan and asks his thirteen-year-old son to treat Zan like a little brother. 680 Lexile. 20110204.