Indian Cobra

Snake, India, Venom, & Pungi

Oct 4, 2023 - 10:14
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Indian cobra

Indian cobra, (Naja naja), also called Indian spectacled cobra, Asian cobra, or binocellate cobra, species of highly venomous snake in the cobra family (Elapidae). It is one of the so-called “big four” species of snakes that inflict the majority of snakebites in India, the other three being the common krait (Bungarus caeruleus), the saw-scaled viper (Echis carinatus), and Russell’s viper (Daboia russelii). The Indian cobra features in Indian culture and is the snake most often associated with snake charmers.

The Indian cobra is found throughout the Indian subcontinent—in India, Pakistan, Sri Lanka, Bangladesh, and Nepal as well as in Afghanistan. Its scientific name, Naja naja, comes from the Sanskrit word naga, which means cobra or snake. It lives in a variety of environments, both wild and cultivated, including savannas, grasslands, mangroves, scrublands, and tropical rainforests. It can also be found in populated areas such as villages and cities. Its main prey is the black rat (Rattus rattus), although it also eats other rodents, frogs, birds, lizards, and even other snakes. It captures its prey by biting and envenomation, and then it waits for its victim to become paralyzed before swallowing it whole.

Estimates of the life span of the Indian cobra vary between about 20 and 30 years. Indian cobras have few predators. Some animals, such as eagles, crocodiles, wild boars, and mongooses, may steal and consume their eggs. Adult mongooses are capable of hunting adult cobras, relying on speed, thick skin and fur, and moderate resistance to the toxic effects of cobra venom to protect themselves from deadly snakebite.

Indian cobra hood markIndian cobra hood mark

Indian cobras are large snakes, generally about 1 to 1.5 metres (3.3 to 4.9 feet) in length. Some specimens, particularly those in Sri Lanka, may grow to lengths of 2.1 to 2.2 metres (6.9 to 7.2 feet), though this is relatively rare. Like all cobras, the Indian cobra sports an impressive hood around its head. The back of the hood bears a black mark outlined in white that resembles two eyes connected by a curved line, which earned the snake the nickname “spectacled cobra.” The front of the hood has two light half-circles with dark spots in the centres, and a black band can be seen on the front of the neck. The scales range in colour from gray and white to brown, tan, yellow, black, or reddish and are often speckled in bands.

Indian cobras make their homes in holes, whether in tree hollows, termite mounds, rock piles, or small animal dens. They reproduce sexually, and the mating season generally occurs in January. The female lays anywhere between 10 and 30 eggs in these holes or in the ground. Unlike most snakes, Indian cobras protect their eggs; the female guards them until they hatch, leaving only in order to feed. The incubation period is some 50 to 70 days. Upon hatching, the snakelets are about 20 to 30 cm (7.9 to 11.8 inches) long. They are capable of striking directly after hatching, and their fangs already contain venom.

Indian cobra venom is extremely dangerous to humans. Unfortunately, human encounters are relatively frequent, as the rodents that make up a large portion of the snake’s diet are often found in and around areas populated by humans. When threatened, Indian cobras take an upright posture with the top third of their body and expand their hood, hissing. Unlike vipers, cobras cannot retract their fangs. Their bite can be deadly if proper medical treatment is not sought immediately. Symptoms of envenomation include pain, headache, blurred vision, nausea and vomiting, breathing problems, paralysis, and in some cases respiratory failure and cardiac arrest.

The cobra holds some significance in Indian culture and features in Indian mythology. The Hindu god Shiva is often depicted with the serpent king Vasuki around his neck. The Indian cobra is a favourite snake of Indian snake charmers, although the tradition has been fading in the early 21st century, since a 1972 law forbidding the keeping of snakes has been more strictly enforced. Charmers keep the snakes in wicker baskets and play music on a double-reed instrument called a pungi. The music appears to cause the cobra to dance; however, the snake does not hear the music but responds to the swaying motion of the snake charmer’s instrument. Snake charmers would often remove the fangs from their cobras or milk them for their venom, which could be sold at a high price as an intoxicant. The Indian cobra was hunted for leather but is now protected by the Indian government, although it is not endangered. The International Union for Conservation of Nature and Natural Resources has classified Naja naja as a species of least concern.

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