Animal territories are generally:
Always defended reflects key principle in quiz on behavior pyqs solved-section f, where evolutionary mechanisms shape genetic variation and adaptation. In this context, Always defended aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why Always defended fits helps integrate natural selection, environment.
Ref: Alcock, Animal Behavior, Inclusive Fitness and Haplodiploidy.