The distinctive feature of an eagle's beak is its sharp, curved shape and strong, pointed tip. This beak structure is specifically adapted for tearing and gripping prey. The hooked tip allows the eagle to grab onto and rip apart its prey, while the sharp edges help to efficiently tear off pieces of meat. This specialized beak design is crucial for an eagle's hunting success, as it enables them to catch, kill, and consume a wide variety of prey in their natural habitats.