Evolution Isn't used as an "explanation" of the origins of humans, at least not it the way that you phrased your original question. People who Don't know what Evolution is seem to think that it's a take on our Origins, but it isn't. It's part of the process of how we are here today, but it's by no means an actual explanation of how life came to be.
As for our actual origins, I'm a fan of the idea that a comet with complex organic compounds struck the Earth, and the environment of the forming Earth kickstarted life into gear. The compounds formed together, turning into simple-celled organisms, then evolving into multi-celled complex forms, eventually evolving to higher and higher forms based on their location and the mutation of their genes through reproduction.
As for our actual origins, I'm a fan of the idea that a comet with complex organic compounds struck the Earth, and the environment of the forming Earth kickstarted life into gear. The compounds formed together, turning into simple-celled organisms, then evolving into multi-celled complex forms, eventually evolving to higher and higher forms based on their location and the mutation of their genes through reproduction.