Contrary to folklore, cobras will seldom attack unprovoked. When threatened, however, the Cobra will make full use of its deadly force. Cobras are not blind, in fact they see very well even at night. Cobras have a "Jacobsen's Organ" (like most snakes) that gives it super smelling ability. They can sense tiny changes in temperature, which helps them track their prey at night. King Cobras, who are aggressive, and will rear up and stand their ground when confronted. Cobras are very intelligent, and can learn quickly, which helps them avoid dangerous areas. Cobras can hear, although they sense sound through contact with the ground much better than humans. A cobras hoods is created by the extension of the ribs behind the snakes' head.