SpeciesKing Cobra
Vulnerable

King Cobra

Ophiophagus hannah

About the King Cobra

The king cobra (Ophiophagus hannah) is the world's longest venomous snake, capable of reaching lengths of up to 5.5 meters, and the sole member of its genus. It inhabits dense highland forests, bamboo thickets, and mangrove swamps across South and Southeast Asia, where it depends on intact forest cover and proximity to water. Unlike most snakes, the king cobra is an ophiophage, meaning it feeds almost exclusively on other snakes, including large pythons and other venomous species, making it a rare apex predator among reptiles.

Listed as Vulnerable on the IUCN Red List, the king cobra faces mounting pressure from habitat loss driven by agricultural expansion and logging, as well as collection for the live animal trade, traditional medicine, and skin markets. Across much of its range, forest fragmentation is isolating populations and limiting the availability of both prey and nesting habitat. The species is legally protected in several countries, including India under the Wildlife Protection Act, but enforcement remains inconsistent and its forest home continues to shrink.

Things worth knowing

  • The king cobra is the only snake species known to build a nest for its eggs, with the female actively guarding the clutch until the eggs hatch.
  • A single king cobra bite can deliver enough venom to kill an Asian elephant, according to research cited by the Natural History Museum, London.
  • King cobras can raise the front third of their body off the ground when threatened, bringing them to roughly human standing height.
  • The species has a relatively small, specialized diet: it preys predominantly on other snakes, including rat snakes, pythons, and kraits.
  • King cobras produce a low-frequency growl rather than a typical hiss, generated by specialized rosette organs in the tracheal lung.
  • Females can lay between 20 and 40 eggs per clutch and will fast for the entire incubation period, which lasts approximately 60 to 90 days, while remaining on the nest.
Who protects them

0 organizations protect the King Cobra

No projects have listed this species yet. If you run a project that protects the King Cobra, you can add it to Wildlife Connect.