Photographer Captures Hilarious Close Up Portraits of Some of the World's Most Unusual Primates

For over two decades, photographer Mogens Trolle has captured stunning wildlife photos on all seven continents. Trained as a zoologist and wildlife biologist, he specializes in mammals and uses his knowledge of them—as well his keen eye—to capture each creature’s unique personality.

The Mark Of Power: Gelada male with its characteristic hourglass-shaped chest mark that is bright red in alpha males like this one and pink in bachelors. Red is the color symbolizing power. Simien Mountains National Park, Ethiopia.