As a financial professional, I'm curious to delve deeper into the realm of crypto derivatives. Could you elaborate on the various types of crypto derivatives that exist in the market today? Specifically, I'm interested in understanding the differences between futures, swaps, options, and perpetual swaps, as well as the mechanisms behind their pricing and trading dynamics. How do these derivatives function, and how do they differ from traditional financial derivatives? Additionally, what are the key risks and considerations investors should be aware of when trading in crypto derivatives? Your insights would be invaluable in helping me navigate this complex but exciting financial landscape.