Mantled Howler Monkeys, Costa RicaI heard mantled howler monkeys loud and clear every morning in Costa Rica, but it wasn’t until our last day that I finally saw them. They were quite high in the canopy, against a bright white sky, but I was able to manage a fair number of shots, including this mother with her kid. Nikon Z8 with Nikkor 500mm PF lens, ISO 500, f/5.6 at 1/125th of a second.