Northern King Cobra

A large, heavy-bodied elapid snake typically measuring 48–84 inches (122–213 cm) in total length, with some individuals exceeding 120 inches (305 cm). Body is moderately robust with a relatively slender neck capable of flattening into a distinctive hood when threatened. Head is broad and somewhat flattened, with moderate eye size and a straightforward snout. Dorsal coloration is typically dark brown, olive-brown, or nearly black, often with yellowish or pale tan crossbands or irregular blotches, though some individuals appear nearly uniformly dark. Dorsolateral stripes or bands may be present, particularly in younger individuals. The hood, when expanded, displays concentric pale and dark banding. Scales are smooth and moderately iridescent in some individuals. Ventral surface is cream, yellow, or pale brown, typically with dark spotting or crossbanding. Juveniles often display more vivid banding and contrast than adults. The head features fixed forward-pointing fangs, a characteristic of venomous elapids. Inhabits lowland forests, swamps, and wet cultivated areas throughout its range in South and Southeast Asia, typically remaining within close proximity to water sources and preferring humid tropical environments. Diet consists almost exclusively of other snakes, including cobras, pit vipers, and other elapids; the specific name reflects this ophiophagous specialization. Highly venomous with potent neurotoxic venom; defensive and known to deliver multiple dry bites or full envenomations when threatened.

Similar species: Monocled Cobra (Naja kaouthia) is smaller, typically under 60 inches (152 cm), lacks the ability to expand a substantial hood, and feeds primarily on small vertebrates and invertebrates rather than snakes; Black Mamba (Dendroaspis polylepis) is found in Africa, has a narrower head, and displays uniform dark coloration without the pale crossbanding typical of king cobras; Indian Cobra (Naja naja) is smaller and more slender, with a distinct spectacle marking on the dorsal hood and a diet not primarily ophiophagous.