So, there are monkeys in South America and in Africa. How did they get there? That’s essentially what Alan de Queiroz wants to answer in The Monkey’s Voyage: How Improbable Journeys Shaped the History of Life, albeit in a roundabout way.
If you’re a creationist, especially a young-Earth creationist, you don’t have to worry too much about this. The answer is “God did it!” (Or possibly, “God did it, praise Jesus!” if you are…