Howler Monkeys: Rio Rincon near Danta Corcovado Lodge, Osa Peninsula, Costa Rica — The Osa Peninsula is home to all 4 of Costa Rica’s primate species. We encountered a troop of Howler Monkeys along the bed of the Rincon well into Corcovodo National Park, near the Ranger Station. The Howler is the second largest monkey … Continue reading Osa Howlers