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FIELD NOTE

King Cobra: Snake-Eating, Nesting & a New Taxonomy

Field Journal King Cobra Ophiophagus hannah Reptiles Species Guide
A field guide to the King Cobra, covering snake-eating specialization, hood display, nesting and the 2024 taxonomic revision that recognized four Ophiophagus species.
King Cobra T-Shirt featuring a vintage natural-history illustration

The King Cobra is one of Asia’s most recognizable snakes. For many years, king cobras across a vast South and Southeast Asian range were treated as a single species, Ophiophagus hannah. A major taxonomic revision published in 2024 recognized four species within what had previously been treated as the O. hannah species complex.

A name that reflects its diet

The genus name Ophiophagus means “snake eater,” reflecting the group’s strong specialization on other snakes. King cobras can also take other reptiles, but snakes form an important part of their natural diet.

The hood is a warning display

When threatened, a king cobra can raise the front of its body and spread its hood, creating a larger and more conspicuous profile. Wild king cobras are venomous and should never be approached or handled; the safe way to observe one is from a distance without disturbing it.

An unusual nesting behaviour

Female king cobras are notable for gathering vegetation into a mound-like nest for their eggs, an unusual behaviour among snakes. A female may remain near the nest during the incubation period.

Four species recognized in the 2024 revision

The revision retained Ophiophagus hannah for populations from eastern Pakistan through northern and eastern India, the Andaman Islands, Indo-Burma and Indo-China south to central Thailand. It revived Ophiophagus bungarus for populations across the Malay Peninsula, Greater Sunda region and parts of the southern Philippines, and described two new species: Ophiophagus kaalinga from the Western Ghats of southwestern India and Ophiophagus salvatana from Luzon in the northern Philippines.

Taxonomy reference: Das et al. (2024), European Journal of Taxonomy 961.

From the field guide to Aves & Atlas

Our King Cobra design is labelled Ophiophagus hannah, the scientific name retained for the northern and eastern part of the former species complex under the 2024 revision. Explore the King Cobra T-Shirt, or browse the Reptiles collection.