A bighorn sheep ram exhibiting the flehman response  twists its neck to sample the air for a ewe in estrus

Bighorn Ram Searching

Wyoming, USA

During the rut, a bighorn ram will contort its head and neck into twisted positions as it samples the air for ewes in estrus. He will sniff the air to pick up pheromones produced by the female. He directs these to an olfactory organ in the roof of his mouth. In this way he can sense whether the female is ready to mate. He will often follow her closely, waiting for the right time.

Photo © copyright by Dr. Edward Mikol.

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Related Galleries: Bighorn Sheep