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The flehmen response (/ ˈ f l eɪ m ən /; from German flehmen, to bare the upper teeth, and Upper Saxon German flemmen, to look spiteful), also called the flehmen position, flehmen reaction, flehmen grimace, flehming, or flehmening, is a behavior in which an animal curls back its upper lip exposing its front teeth, inhales with the nostrils usually closed, and then often holds this position ...
Some mammals, particularly felids (cats) and ungulates (which includes horses, cattle, and pigs among other species), use a distinctive facial movement called the flehmen response to direct inhaled compounds to the VNO. The animal lifts its head after finding the odorant, wrinkles its nose while lifting its lips, and ceases to breathe momentarily.
The Flehmen response is exhibited by rams when they smell the urine of a ewe in estrus. The vomeronasal organ has receptors which detect the estrogen in the ewe's urine. [ 4 ] The ram displays this by extending his neck and curling his lip.
Image credits: meow.citos A significant portion of the photographs presented in our selection are the so-called Flehmen response, a characteristic movement of the lips in many mammals associated ...
Cat pheromone detection is often accomplished through an action known as the flehmen response, where the cat lifts its head, slightly opens its mouth, pushes its tongue to the front of its palate, and retracts its upper lip.
Musk tweeted that federal workers “hate even the tiniest amount of accountability,” in response to lawsuits over the emails. Show comments. Advertisement. Advertisement. In Other News.
In response to the nomination of Kennedy as HHS Secretary, Samoa’s director general of health, Aiono Prof Alec Ekeroma, told The Guardian, “We cannot and should not stay silent. We know what ...
Some mammals make a facial expression called flehmen to direct stimuli to this organ. The sensory receptors of the accessory olfactory system are located in the vomeronasal organ. As in the main olfactory system, the axons of these sensory neurons project from the vomeronasal organ to the accessory olfactory bulb , which in the mouse is located ...