Earth is the only planet we know has life, but it might not be the best one – a thicker atmosphere and slower spin would make a world more conducive to sea life
Source:
https://www.newscientist.com/article/2218001-ocean-worlds-with-a-thick-atmosphere-may-be-better-for-life-than-earth/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home