* Jaguars: These large cats are apex predators in the Amazon rainforest and can hunt large monkeys like spider monkeys.
* Harpy Eagles: These massive birds of prey have powerful talons and are capable of taking down spider monkeys.
* Boa Constrictors: While not as common, boa constrictors can grow large enough to subdue and eat spider monkeys.
* Humans: Unfortunately, humans are a threat to spider monkeys through habitat destruction and hunting.
It's important to note that most of these predators focus on young, sick, or injured spider monkeys. Healthy adults are generally safe from these threats.