Folks, life is the most creative thing in existence. Allow me to present a terrifying example of its ability to survive murderous conditions.
So do not limit your search to things you already know or what you think is "ideal." Look everywhere, because you never know where you'll find it, and it's better not to step in it unawares in case it decides to eat your leg off, or even your unmanned probe. And a sample of one is not a statistic.
The Interstellar Search for Goldilocks