Well, strictly speaking, Romance languages are not the evolution of Latin - each is a mix of (the Vulgar) Latin and a local language. For example, French has been heavily influenced by Frankish, so much so, in fact, that English, not even being a Romance language, seems closer to Latin than French does - simply because it imported so many words directly from Latin. (The closest example of a continuous and mostly unadulterated evolution of a now dead language into a modern one is Greek.)
It's more like, say, there was jazz in the 1920s, there are many types of jazz today, evolved from that early jazz but all very different from it, and different from each other.