creatures of light (and) night

[thx569]

I got snarky with a player over a previous post and I owe apologies for that and I can't seem to say it enough.

Now my question. I have looked through the Wiki (again) and failed to find my answers (again).
What creates "Creatures of the light" and "Creatures of the Night". I'm missing something in the Wiki and I don't know what.

As an aside, making multiple posts boosts my profile. A silly way to boost myself , but OK for want of a better idea.

 

[iamthouth]

@thx569 answered in your other post on the same topic.

 

[Lelanya]

Creatures are produced in the Breeding Facility

 

[thx569]

Thank you Lelanya. That raises more questions, What is a Breeding Facility?

 

[thx569]

Forget that last post. I just found it. Getting older means losing it.