King Cobras are number 1 on The Most Extreme Deadly Snakes. They kill ten thousand people every year. They are cannibalistic, and like to eat other snakes. They can inject 6 teaspoons of venom in a single bite, that is ten times more than most snakes. They are also the only snakes that look after their young. However, because they eat rats and mice that carry diseases deadlier than any snake, they save far more lives than they kill.