"Hominids" is a science fiction novel by Robert J. Sawyer that explores the intersection of human evolution and parallel universes. The story centers on a Neanderthal named Ponter Boddit, who, while conducting research, accidentally slips into a parallel Earth where modern humans dominate. The novel delves into the differences between Neanderthals and humans, highlighting their societal structures, intelligence, and emotional capacities. As Ponter navigates this new world, he encounters a number of challenges, including the potential for conflict between the two species. Throughout his journey, the book examines themes of identity, coexistence, and the nature of humanity, prompting readers to reflect on the implications of evolution and what it means to be human.