Hissing

+Hissing is a sharp, breathy [sound](/wiki/sound) produced by expelling air forcefully, often through a narrow opening. This distinct utterance frequently serves as a primal [warning](/wiki/warning) or defensive display across many species. It can signal fear, irritation, or aggression.

+## See also

+- [Vocalization](/wiki/vocalization)

+- [Animal](/wiki/animal)

+- [Threat](/wiki/threat)