The king cobra (Ophiophagus hannah) is in the Elapidae family of snakes. It is the longest venomous snake in the world. An adult king cobra can grow up to 18 feet (5.5 m), though most are less than 12 ft (3.7 m). It is endemic to Asia.
Distribution of the king cobra
The king cobra lives throughout India and in some parts of the south and the east of Asia. It is known around the world for its dangerous venom. It mostly avoids humans. The King cobra lives up to 20 years.
Unlike many snakes, the female king cobra is a very good parent. It makes a mound as a nest for its eggs and protects them for 60-90 days until they hatch. It lays 20-40 eggs.  The mother stays until the eggs begin to hatch and then leaves to find food for herself. Baby king cobras are 18–22 inches (460–560 mm) and have venom as strong as adults.
Growling hiss Edit
The hiss of the king cobra is a much lower pitch than many other snakes and many people thus liken its call to a "growl" rather than a hiss. While the hisses of most snakes are of a broad-frequency span ranging from roughly 3,000 to 13,000 Hz with a dominant frequency near 7,500 Hz, king cobra growls consist solely of frequencies below 2,500 Hz, with a dominant frequency near 600 Hz, a much lower-sounding frequency closer to that of a human voice. Comparative anatomical morphometric analysis has led to a discovery of tracheal diverticula that function as low-frequency resonating chambers in king cobra and its prey, the rat snake, both of which can make similar growls.
- Stuart, B.; Wogan, G.; Grismer, L.; Auliya, M.; Inger, R. F.; Lilley, R.; Chan-Ard, T.; Thy, N.; Nguyen, T. Q.; Srinivasulu, C.; Jelić, D. (2012). "Ophiophagus hannah". The IUCN Red List of Threatened Species. IUCN. 2012: e.T177540A1491874. doi:10.2305/IUCN.UK.2012-1.RLTS.T177540A1491874.en.
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They are fiercely aggressive when cornered; average life span in the wild: 20 years
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