These are nocturnal ophiophagious predators which prey primarily on other snakes at night, occasionally taking lizards, amphibians and rodents.
Despite being considered as generally docile and timid, kraits are capable of delivering highly potent neurotoxic venom which is medically significant with potential lethality to humans.
Kraits are found in tropical and subtropical South and Southeast Asia and Indochina, ranging in the west from Iran, east through the Indian subcontinent (including Bangladesh, Nepal, Pakistan, & Sri Lanka) and into Southeast Asia (including the island of Borneo, Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Papua New Guinea, the Philippines, Thailand and Vietnam).
[5] Most species of kraits are covered in smooth, glossy scales arranged in bold, striped patterns of alternating black and light-colored areas.
Kraits are nocturnal and ophiophagous, preying chiefly upon other snakes including those of their kinds, although occasional hunt for small rodents and lizards has been observed.
If disturbed, fleeing is usually their first choice; if failed, they tend to coil up with the head underneath the body for protection.
As no local symptoms are usually seen, a patient should be carefully observed for tell-tale signs of paralysis (e.g. the onset of bilateral ptosis, diplopia, and dysphagia), and subsequently treated (as quickly as possible) with antivenom.
Upon arriving at a healthcare facility, support must be provided until the venom has metabolised and the victim can breathe unaided, especially if no species-specific antivenom is available.
Even if patients make it to a hospital, subsequently entering a permanent coma (and even brain death from hypoxia) may occur, given the potential for long transport times to get medical care, in some regions.