Researchers have revealed that there are good chances for a new type of methane-based, oxygen-free life form to metabolize and reproduce akin to life on earth. A team of researchers modeled the hypothetical cell membrane, which comprises small organic nitrogen compounds. What should be noted here is the ability of the cell membrane to function in liquid methane at temperature 292 degrees below zero, an utmost requirement for life to exist in a harsh, cold world.
This has good implications for a form of life to exist in the giant moon of Saturn - Titan, which has seas without water. But the seas on Titan consist of liquid methane, meaning it has high odds for having methane-based, oxygen-free cells.