The animal known as a "pack hunter" is the wolf. Wolves are highly social animals that live and hunt in packs, which can consist of family members or close-knit groups. This pack behavior enhances their hunting efficiency, allowing them to take down larger prey than they could individually. The social structure and communication among pack members are vital for their hunting strategies and overall survival. Wolves are known for their loyalty to their pack and demonstrate a complex social hierarchy, making them fascinating subjects of study in animal behavior.