Geladas in repose (© Pavel Blažek/500px)

【December 5 2015】You may hear these primates referred to as “gelada baboons” or “bleeding heart baboons.” And while they do share many physical traits with baboons, most scientists put these grass-eating monkeys in their own genus. But why “bleeding heart?” Both adult males and females have a bright-red, hourglass-shaped mark on their chests. They’re very social and gather on the grassy hills of Ethiopia’s Semien Mountains to munch on the grasses and groom each other.Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..