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The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
The king cobra (Ophiophagus hannah) is a species complex of snakes endemic to Asia. With an average of 3.18 to 4 m (10.4 to 13.1 ft) and a record length of 5.85 m (19.2 ft), [ 2 ] it is the world's longest venomous snake and among the heaviest.
The species is native to Africa, mostly the central and western parts of the continent. [5] It is the largest true cobra species with a record length of 3.2 metres (10 feet 6 inches). [6] [7] Although it prefers lowland forest and moist savanna habitats, this cobra is highly adaptable and can be found in drier climates within its geographical ...
The Egyptian cobra is a large species. The head is large and depressed and slightly distinct from the neck. The neck of this species has long cervical ribs capable of expanding to form a hood, like all other cobras. The snout of the Egyptian cobra is moderately broad and rounded. The eye is quite big with a round pupil.
Although venom toxicity values can vary greatly even among specimens of the same species, the Philippine cobra is considered to possess one of the more toxic venoms among the Naja (cobra) species. According to Tan et al., the murine LD 50 via the IV route for this species is 0.18 mg/kg (0.11-0.3 mg/kg). [10]
The generic name Naja is a Latinisation of the Sanskrit word nāgá , meaning "cobra”. The specific epithet arabica means “of Arabia” or “Arabic”. This species, Naja arabica , had long been considered a subspecies of the Egyptian cobra ( Naja haje ), but morphological and genetic differences have led to its recognition as a separate ...
The Caspian cobra (Naja oxiana), also called the persian cobra or Russian cobra, is a species of highly venomous snake in the family Elapidae. The species is endemic to Central Asia . First described by Karl Eichwald , a German physician, in 1831, it was for many years considered to be a subspecies of the Naja naja until genetic analysis ...
The monocled cobra has an O-shaped, or monocellate hood pattern, unlike that of the Indian cobra, which has the "spectacle" pattern (two circular ocelli connected by a curved line) on the rear of its hood. The elongated nuchal ribs enable a cobra to expand the anterior of the neck into a “hood”. Coloration in the young is more constant.