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King Cobra – Largest Venomous Snake in World

Large Thailand King Cobra head

Ophiophagus hannah. Very deadly. Grows almost to 6m. Eats other snakes primarily. If bitten, may die within 10-20 minutes.

Ophiophagus hannah
(Thailand King Cobra)

Thais say: Thai language sounds like Ngoo how chang, or ngoo chong ahng. There are many names for this snake.

Length: Max length about 5.8 meters. The presenter at the Saovabha Snake Farm in Bangkok said the largest king was caught in Nakhon si Thammarat in Thailand’s south, near Surat Thani province.

Range: All over Thailand and most of Southeast Asia.

Notes: I’ve seen just one in the wild – and that was last night. Well, two. One I saw in a park – just the tail. I’m guessing it was a 8 meter King – but stats say that’s impossible. This was the biggest King in the world I’m guessing. It was massive… A very scary site. Kings are all over Thailand and can be found anywhere near houses, or really – anywhere. They are tremendously strong and smart animals. Please give the snake a large space and do not poke it with a stick. They are very fast too. The baby Kings can kill you too – their venom is every bit as toxic. Be careful please…

Habitat: Like many types of habitat. Dense forest near water and open grasslands.  Love bamboo thickets for a nest. Ideal cover is a web of small bamboo growing about a meter high with soft bamboo leaves underneath. The King I found last night was up a limestone mountain about 100 meters vertically. In Thailand they are often found wherever Rat Snakes might be found since it’s their principle diet.

The guys at the cobra show find the Kings under palm branches in palm plantations. They lift up one end and throw it down – or smack it with sticks and sometimes Kings jump out. What a living, eh?

Active Time? The snake is mainly diurnal – found active during the daytime, but also at night.

Food: Other snakes – mostly the rat snakes. Occasionally they’ll eat other King Cobras, pythons, lizards, birds, rodents. I saw a 5m King attempting to eat a 2.5m reticulated python. The King appeared intimidated by the strength of the python – it’s no pushover. Here is a photo of a 3 meter king eating a 2 meter red tailed racer snake.

King Cobra Eats Red Tailed Racer Snake - Thailand

Defensive Behavior: Lift head off ground and flatten out neck. The hood of a King cobra doesn’t flare as wide… but, a big King will scare you much more because they can be 5 times as long as the monocled or other cobras! These snakes are not usually that afraid of people, and move slowly to ‘escape’ if they move away at all. Last night I moved a 4 meter King off some steps at a local temple so people could pass. It was not in ANY hurry, and came at me a couple of times. Impressive snakes, and be very afraid… I know a man personally, his brother was bitten on the chest and died in less than 10 minutes on the way to hospital.

Venom Toxicity: Very toxic, but monocled cobras (Naja kaouthia) and kraits (genus Bungarus) are more potent on the LD50 scale. The power of the King is in the volume of venom it can inject in one bite – maximum around 7ml! Kings can kill elephants with a bite.

Anti-Venin: There is a specific anti-venin for the king cobras, but if the hospital you are at does not have it there is an alternative. Tiger snake anti-venin can also work well.

Offspring: Lay eggs which they stay with in the nest until ready to hatch. When the eggs start to hatch the mother leaves because it eats other snakes primarily – and would likely eat the young. The young are fast, and deadly from the time they hatch. Juvenile king cobras from Thailand have yellow bands across their black bodies and heads. They look radically different from adult king cobra snakes.

Classification:

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Ophiophagus
Species: O. hannah

Three King Cobras in Thailand

Notice the light band across the back of the mid-body (right) ? Until the King flares his hood you can tell it’s a king by those bands. In addition, the head is very distinctive, and large compared to any other snake except a Python.

The kings in these photos are all beat up from bashing their faces against the cages at a snake show in Thailand. In the wild they are so beautiful… majestic… amazing snakes. I was so glad to see my first one  in the wild last night. Even better to interact with it… Gotta love Thailand!

Video of a King Cobra breathing – you can hear it – very cool:

About Vern Lovic

All posts by Vern Lovic. Amateur herpetologist roaming about Thailand on field herping trips to find cobras, kraits, coral snakes, and other snakes native to Thailand. Thailand has over 200 snake species with many of them venomous.

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- who has written 183 posts on Thailand Snakes | Venomous | Photos | Videos | ID.

All posts by Vern Lovic. Amateur herpetologist roaming about Thailand on field herping trips to find cobras, kraits, coral snakes, and other snakes native to Thailand. Thailand has over 200 snake species with many of them venomous.

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8 Responses to “King Cobra – Largest Venomous Snake in World”

  1. marie says:

    i think its a very unique animal, its quite scary though, but i find it very amuzing, one of my friends got a king cobra tattooed on her arm and it looks down! i think this website is helpful incase one day we come face to face with one of theese dangerous creatures:]

  2. Dakota says:

    I have a King Cobra living under my house in Roi-et, Thailand (there may be a pair of them… I’m not sure). I ran into it only once and it was an amazing creature. However, when I came across it, it was moving VERY fast trying to escape my little dog that was nipping at its tail. It was so damn big, I was left breathless. It slithered right in front of me and didn’t seem to take any notice of me at all. It only seemed interested in getting away from my little dog (which I’m sure would have been only a small snack for him). It went directly toward my house and started knocking it’s head against the smoked glass sliding door. I can only assume that it thought there was a dark cave there. Eventually it slithered into some tall grass. I wanted to see more of it but reason got the better of me. I’m sure it’s still there but thankfully, I’ve only run into it that one time.

    • Vern says:

      Wow, wish it was me. You can call the ambulance people or the police and they’ll send a guy that picks up the king cobra for you. Not sure what they’ll do with it – but at least it won’t be under your house.

  3. Tom says:

    Hi Vern,

    Great site!

    So – if you come face to face with a King Cobra do you freeze or leg it?

    Also, do you know if it’s possible to buy the anti-venom anywhere in Thailand (or elsewhere if not here)?

    Tom.

    • Vern says:

      Hi Tom,

      Hmm, good question. Probably better to leg it! But, if you are very close, freezing is best. They strike as you back away, so unless you’re moving fast, don’t bother. Another thing, they can only strike lower than their heads. All the major hospitals have the antivenin, or can get it from the Queen Saovabha Snake Farm in Bangkok. Cheers man, Vern

  4. willy says:

    Hey, do you have any photos of juvenile King Cobras? The info above says they have yellow bands across black bodies. I ask because around the beginning of the year I was riding a bicycle on the road out of Ob Khan NP and stopped as about a dozen little black snakes with a yellow band across their “neck” were slithering across the road. They would have been coming from a creek bed area. I know nothing of snakes other than the old adage to treat every snake as though it’s venomous. Actually, the only live cobra I’ve seen has been on that same road, smack in the middle, when I stopped at the top of a hill. He wouldn’t move and since it was a single lane I didn’t feel I had enough clearance to get past him. He was erect with his hood flared. I attempted to throw rocks near him (not at him) in hopes of moving him along (it was getting dark and I wanted to get out of the park). Every time a rock would land, he’d react to it, but not move. Finally, a jeep came along and ran over him, I heard a bang (like a balloon popping) and then saw the snake slither off to the side of the road and I still road past as fast as I could and as far away as possible.

  5. monojit bose says:

    Realy, king cobra is a Monsters snake . I don’t know why but I love this snake.

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Thailand has 200+ snake species with over 60 of them - venomous. I created this site as a way to educate Thais and visitors to Thailand about snakes. Many people kill the snakes they see in Thailand, while in many cases - they are non-venomous and completely harmless. With this site I hope to give people a better idea what is harmful and what isn't.

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