Spectacled Caiman, GuyanaGuyana has four species of caiman — the black, two types of dwarf, and the spectacled. I saw quite a few of the spectacled, as well as black, on my recent trip. This spectacled caiman was resting on a sandy bank of the river just after sunset, allowing me to get a low perspective from our boat. Nikon Z8 with Nikkor 500mm PF lens, ISO 5000, f/5.6 at 1/160th of a second.