Board Thread:Wiki Discussion/@comment-29697946-20161123022144/@comment-26304798-20161129115819

Categories need to cover a much wider range of things and be much less specific than the things you've listed.

1. Cities is already covered by Locations and does not need any subcategories. In addition there are only 2 known cities at this point anyway, not enough for a category.

2. Vertabrates and invertebrates are unnecessarily specific and are both covered by Species.

3. There are barely any unknown species worth mentioning and thus no need for a category.