Flehmen
What It Means
Flehmen is a mammalian behavior (as of horses or cats) in which the animal inhales with the mouth open and upper lip curled. This is done to expose the nose to a scent.

Flehmen is a mammalian behavior (as of horses or cats) in which the animal inhales with the mouth open and upper lip curled. This is done to expose the nose to a scent.