Colombian Red Howler Monkey

Also known as Venezuelan Red Howler, Red Howler Monkey

Deep within the South American canopy, Colombian red howlers start each morning with thunderous roars enabled by enlarged, hollow hyoid bones that resonate for miles. These heavy-set primates spend long hours resting high in the treetops to digest a fibrous diet rich in tough leaves, fruits, and flowers. Living in small, cohesive groups of three to nine individuals, they use prehensile, bare-tipped tails as a crucial fifth limb when moving along fragile branches.