Quahog clams are a type of hard-shelled clam found along the Atlantic coast of North America. They are known for their thick, round shells and can vary in size, with some reaching up to four inches in diameter. Quahogs are often used in cooking, especially in dishes like clam chowder and clam bakes, making them a popular seafood choice. These clams are also significant in Native American culture, where they were historically used as a food source and for making wampum, a type of currency. Quahogs play an essential role in the marine ecosystem, helping to filter water and maintain healthy ocean environments.