Well yeah I'm greedy like that
I remember watching an Attenborough documentary when I was a kid. It was about SA and this one episode focused on the monkeys. All these different species of monkey that lived together at different levels of the canopy. And it blew my wee little mind to learn that not only do the moneys have languages, different squeaks and chirrups that were vocabulary for different foods, predator threats and social interactions, but also the different species of monkey could understand each other! So a tamarin would say "eagle!" And they'd all dash down to the floor, and a marmoset would say "jaguar!" And they'd all run up to the tree tops. They even found instances of monkeys lying! One would find some good fruit, dash somewhere else, yell "yum tasty fruit!" Then sneak back to their bounty while the others went to look for the invisible fruit!
That's why we need multiple species of SA monkey, stat