Cobra is a word which means "snake" in Portuguese. In English it is the common name for various venomous snakes. Most of those species are in the family Elapidae, and most of them can spread their neck ribs to form a flattened, widened hood.
Cobras usually live in tropical and desert regions of Asia and Africa. When feeling threatened, cobras can tilt back and flatten their heads into their warning posture. The rest of the time their heads are symmetrical and they look much like any other snakes.
References[change | change source]
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- Oxford. 1991. The Compact Oxford English Dictionary. 2nd ed, Clarendon Press, Oxford. ISBN 0-19-861258-3.