How king cobra is different from other cobras

King Cobra (Ophiophagus hannah) is the world's longest venomous snake and belongs to a separate genus, Ophiophagus.
Other Cobras (such as the Indian Cobra, Naja naja) belong to the Naja genus.

King Cobra can grow up to 18 feet (5.5 meters), making it the longest venomous snake.
Other Cobras are usually much smaller, typically between 3 to 7 feet (1 to 2 meters).

King Cobra mainly feeds on other snakes, including venomous ones.
Other Cobras eat small mammals, birds, and amphibians.

King Cobra's venom is less toxic than that of some other cobras, but it injects a large quantity, making its bite deadly.
Other Cobras' venom (e.g., Indian Cobra) is more neurotoxic, affecting the nervous system faster but in smaller doses.

King Cobra has a narrower, elongated hood and is less aggressive unless provoked. It can also "stand up" and look a human in the eye.
Other Cobras have a broader, wider hood and are more defensive, flaring their hoods quickly when threatened.