Black-necked Spitting Cobra

Fascinating facts about the Black-necked Spitting Cobra

• A single spitting cobra can launch a venom drop over 7 metres (23 ft) with pinpoint accuracy, turning a defensive hiss into a long-range weapon. The spray can hit a moving target several meters away, which is far beyond the reach of any other snake’s bite. This ability shows how evolution can turn a simple toxin into a projectile defense system.
• When untreated, bites from this African cobra kill about 5-10 % of victims, and in endemic regions the fatality rate is under 1 %.
• From head to tail these snakes range from 1.2 m to 2.2 m (3.9-7.2 ft).
• A female can lay anywhere from 8 to 22 eggs, most commonly 10-15, after a 90-100-day gestation. The eggs incubate for 60-70 days at 28-30 °C (82-86 °F) before hatching tiny 20-25 cm (8-10 in) snakes that are instantly independent. This rapid turnover helps the species stay abundant across the savanna and semi-desert habitats.
• In 1944 a Ghanaian laborer was sprayed from just four-five feet away, and his eye healed in about a week after treatment, prompting a surgeon to wonder if diluted venom could serve as a powerful eye anesthetic. The case underscores how a toxin that can blind also hints at medical potential, flipping fear into curiosity.

At a glance

About the Black-necked Spitting Cobra

The black-necked spitting cobra, Naja nigricollis, is a moderately sized elapid that stretches from 1.2 m to 2.2 m (3.9 ft to 7.2 ft). Its head is distinct, swollen by a pair of large venom glands, and its coat is a canvas of regional palettes – from stark black or pale grey with a bright yellow or reddish belly and a bold black neck band, to yellow-copper, deep reddish-brown, olive, or even striped black-and-white. Scale counts of 21–23 dorsal rows, 182–196 ventrals and 54–66 subcaudals help taxonomists confirm identity. This cobra thrives across sub-Saharan savannas, semi-deserts, moist savanna, and cleared former forests, from sea level up to 1 800 m (5 900 ft). It favors riverine corridors, abandoned termite mounds, and tree trunks, climbing with surprising agility to hunt small rodents, birds, fish, lizards, eggs and occasional snakes. Its diet drives its reputation as a prolific predator, yet the snake’s most infamous weapon is its ability to spit venom up to seven metres (23 ft) with pinpoint accuracy, a cytotoxic spray that can blister skin and, if it reaches the eyes, cause permanent blindness.

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