Step 1: "Ornithology" is a branch of zoology dedicated to the study of birds. It focuses on various aspects such as bird behavior, anatomy, and classification.
Step 2: In a similar way, "Entomology" refers to the scientific study of insects. The term originates from the Greek word "entomos," meaning "insect."
Step 3: Both terms describe fields of study that focus on different types of animals, with each specializing in a particular category of organisms.
Thus, the correct answer is "Insects."