flehmen

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flehmen

(ˈfleɪmən)
n
a curling of the upper lip and raising of the head in certain mammals in response to olfactory stimuli, which behaviour allows the scents better to reach an olfactory organ deep within the animal's nose
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References in periodicals archive ?
Probably the most recognizable of these is the flehmen response. When a buck finds himself downwind of an estrous doe, he'll raise his head high and drink in her aromas by inhaling deeply and curling his upper lip.
Preliminary study of the development of the flehmen response in Equus caballus.
The behavior, called the flehmen response, is particular to mammals, such as members of the cat family, horses, cattle and pigs.
The classic head-raised, lip-curling behaviour of the ram as it smells oestrus females is called the Flehmen response.