There are many independent characteristics required to be fulfilled for any planet to host advanced carbon-based life. Two popular books have recently been written, The Privileged Planet by Guillermo Gonzalez and Rare Earth by Donald Brownlee, indicating the earth is extremely unique in its ability to host advanced life in this universe. Privileged Planet, which also holds any life supporting world will also be found to be situated so as to allow profound discoveries into the deep mysteries of the universe, has now been made into a video.
The Privileged Planet - video
Probability For Life On Earth - Michael Strauss - video
There is also a well researched statistical analysis of the many independent "life-enabling characteristics" that mathematically proves the earth is extremely unique in its ability to support complex life. The statistical analysis, which is actually a refinement of the Drake equation, is dealt with by astro-physicist Dr. Hugh Ross (1945-present) in his paper "Probability for Life on Earth".
Probability For Life On Earth - List of Parameters, References, and Math - Hugh Ross
Intelligent Design - The Anthropic Hypothesis