Lucy is a hybrid human,with human and bonobo ape genes created by her father, a primatologist working in Congo. After a rebellion, he is left dead and Lucy is rescued by another researcher (unaware of Lucy's parentage) as she escapes the country. The book is a Young Adult novel, so its issues are aimed at teens. Lucy, once in the US deals with some typical teen problems like fitting in, making friends. She struggles with her sexuality (bonobos are notably more sexually free than humans). As one might guess, Lucy's genetic make up can not stay a secret forever. Once she is exposed, there is much debate about her human-ness and her rights. Interesting dilemma and nice resolution. This would be a very different book, if written for adults, which could have explored the ethical issues of the scientist creating a hybrid human.