https://www.sciencealert.com/why-are-there-no-monkeys-in-north-america
https://www.popsci.com/science/article/2013-04/fyi-why-are-there-no-native-monkeys-america/
“But 50 million years ago, there were primates here.” It turns out there are lots of reasons why the ancient primates that inhabited what is now the United States–and even Canada!–no longer call those areas home.