searching for what makes us human, in rainforests, labs, sanctuaries, and zoos
Cohen, Jon
2010
Reports on what researchers have learned about the blood, brains, and bodies of chimpanzees, highlighting areas in which they differ and are similar to humans.
While hurrying to get on the school bus, Arthur and his friend unknowingly switch their lunch boxes; later Arthur finds out what surprise his sister had put into hers.