a large fish that has sharp teeth and a pointed fin on its back
The film 'Jaws' is about a shark that attacks people.
The documentary highlighted the majesty and vulnerability of various shark species.
Some species of sharks are known for their migratory patterns, traveling vast distances in search of food.
Marine conservation efforts focus on protecting sharks to maintain the balance of ocean ecosystems.
The swimmer spotted a distant silhouette in the water, wondering if it could be a shark.