The most impressive of all cobras, and perhaps the most impressive of all snakes,is the king cobra of Southeast Asia.
It is the largest of all venomous snakes ,attaining a length of 18 feet and a weight of over 20 pounds.
The king cobra is the only known nest-building snake.
The female builds an 18 inch-high , two-compartment nest of grass and leaves on the forest floor.
The lower compartment contains the eggs, and the upper houses the female ,who guards the clutch until it hatches.