Well, if you're saying that you believe we somehow "evolved" from fish, to monkeys to man, you've made a leap of faith way too far for the evidence to sustain. But you're certainly free to do so.
I'm always a bit amazed at those defending the Christian version of the beginnings of life when they talk, in a somewhat negative way, about "a leap of faith way too far for the evidence to sustain" when referencing evolution, while having no issue with making their own leap of faith that "God did it", requiring no evidence at all.
Check out the behavior of the northern snakehead. It picks itself out of one body of water, crawls to another, and can live out of water for several days. http://www.invadingspecies.com/Invaders.cfm?A=Page&PID=23