LIP FLIP 🐒⁠ ⁠ The gelada male is doing the unique "lip-flip display" to show off his long fangs framed in pink, one of the most dramatic facial expressions in the wild. mogenstrolle calls it the "pink threat." The gelada has evolved special facial muscles to be able to pull its upper lip back like that. ⁠ ⁠ Directly from the mountains of Ethiopia.⁠ ⁠ _____⁠ ⁠ 📸 courtesy of: mogenstrolle⁠ ⁠ ⁠ ⁠ #gelada #geladamonkey #baboon #monkey #biology #science