Edward H. Hagen writes in "The Handbook of Evolutionary Psychology" that sociobiology is, despite the public controversy regarding the applications to humans, "one of the scientific triumphs of the twentieth century." "Sociobiology is now part of the core research and curriculum of virtually all biology departments, and it is a foundation of the work of almost all field biologists" Sociobiological research on nonhuman organisms has increased dramatically and continuously in the world's top scientific journals such as "Nature" and "Science". The more general term behavioral ecology is commonly substituted for the term sociobiology in order to avoid the public controversy.