For starters, monkeys are abundant. Tiputini is remarkable in hosting ten different species of primates, of which I’ve encountered eight: howler, wooly, spider, squirrel, tidi, and saki monkeys; golden-mantled tamarins, and brown capuchins (I haven’t seen the owl monkey, which is nocturnal, or pygmy marmoset, which is rare).
There are a couple of squirrels here, including the red jungle squirrel, which is impressively large and bright. You might find an agouti (a type of rodent about the size of a squirrel) lurking around the station, or, if you go to the bathroom at night, a small possum in the ceiling.
Snakes are generally rare. Tiputini has two particularly venomous snakes, the fer-de-lance and bushmaster, neither of which you want to tangle with, but I have yet to encounter a single one, though some students found a bushmaster on a night hike last month.
A couple of days ago, a group of visitors photographed a Harpy Eagle perched next to the river on their way in to Tiputini (jealous…). Maybe it’ll eat the sloth I spotted earlier. Every day brings something new!