What is a "diamondback terrapin"?

A diamondback terrapin is a species of small to medium-sized turtle found along the eastern coast of North America, known for its unique diamond-shaped markings on its shell. It inhabits brackish marshes and estuaries and is well adapted for both land and water, with strong limbs and webbed feet. The diamondback terrapin is valued for its striking appearance and is considered an important species in coastal ecosystems.