Answer:
Lake Maracaibo can't officially be classified as a lake since it is connected to the Caribbean Sea.
South America's largest lake is Lake Titicaca and its special because it's one of less than twenty ancient lakes on earth.
Lake Titicaca is officaly the largest lake in South America.
Explanation: Lake Maracaibo is actually larger in size; however, it cannot officially be classified as a lake since it is connected to the Caribbean Sea.