One of the main pitfalls of any theoretically 'niche' show is that you spend too much time on the 'niche' and not enough time on the 'show.'
If you step on people in this life, you're going to come back as a cockroach.
An argument often given for why Earth couldn't host another form of life is that once the life we know became established, it would have eliminated any competition through natural selection. But if another form of life were confined to its own niche, there would be little direct competition with reg