Red Howler Monkey Mom and Baby, GuyanaI was able to photograph four species of monkey on my trip to Guyana. This mom and baby are Guyanan red howler monkeys, captured in the Iwokrama rainforest. The Iwokrama is considered one of the four last pristine tropical rainforests in the world (along with the Congo, New Guinea and the Amazon). Nikon Z8 with Nikkor 500mm PF lens, ISO 4000, f/5.6 at 1/160th of a second.