13782924 - African buffalo (Syncerus caffer) showing the flehmen response, Maasai Mara National Reserve, Kenya, Africa.13777601 - Large Bighorn Sheep ram (Ovis canadensis) with massive horns performs lip curl (flehmen) display during the rut near Yellowstone National Park; Montana, United States of America13782986 - Big male lion (Panthera leo) showing Flehmen behavior, Maasai Mara National Reserve, Kenya13782987 - Big male lion (Panthera leo) showing Flehmen behavior, Maasai Mara National Reserve, Kenya71419137 - Africa, Tanzania, Serengeti. Lion displaying the Flehmen reaction, which is a reaction to female hormones but looks like a laugh.13777602 - Large Bighorn Sheep ram (Ovis canadensis) with massive horns performs lip curl (flehmen) display during the rut near Yellowstone National Park; Montana, United States of America13777617 - Bighorn Sheep ram (Ovis canadensis) performs lip curl (flehmen display) in the North Fork of the Shoshone River valley near Yellowstone National Park; Wyoming, United States of America71182121 - A male lion ,Panthera leo, doing the flehmen grimace, Tsavo, Kenya, East Africa, Africa70382260 - Black Rhinoceros Diceros bicornis - Also called Hook-lipped Rhinoceros Bull does the ´flehmen´, the typical grimace of many male mammals when they capture the scent of a female Masai Mara National Reserve, Kenya13777631 - Bighorn Sheep rams (Ovis canadensis) stand together during the rut near Yellowstone National Park; Montana, United States of America
