Family, teen, historical & realistic fiction - Half Brother by Kenneth Oppel

From a Printz-Honor-winning author, an absorbing novel about a teen boy whose scientist parents take in a chimpanzee. All happy families are alike. Ben Tomlin's unhappy family is unhappy in a very different way. For thirteen years, Ben Tomlin was an only child. But all that changes when his mother brings home Zan--an eight-day-old chimpanzee. Ben's father, a renowned behavioral scientist, has uprooted the family to pursue his latest research project: a high-profile experiment to determine whether chimps can acquire advanced language skills. Ben's parents tell him to treat Zan like a little brother. Ben reluctantly agrees. At least now he's not the only one his father's going to scrutinize....Read more