Crown of Thorns Starfish: Nature's Spiky Treasure. Behold the Crown of Thorns starfish—a creature born from the ocean's most dramatic imagination. With its distinctive spiky crown of venomous spines radiating outward, this starfish commands attention like a jeweled monarch of the reef. Each specimen measures 4 to 6 inches, capturing the raw beauty of a predator perfectly adapted to its underwater kingdom. These natural wonders showcase intricate patterns and textures that tell stories of survival in coral gardens across the Indo-Pacific. A striking addition to any collection, this starfish embodies the wild elegance and untamed spirit of the deep sea.