Reports show only the information you can access where as Dashboards show information which you even cannot access.

Standard picklists can be the controlling field but not the dependent in a field dependency:

Records & Record Detail Pages: I can edit data for multiple records at once by selecting each of them within a list view, Clicking on one of the records, and choosing the field to edit for all.

Standard picklists can be the controlling field but not the dependent in a field dependency:

Both accounts and users can exist in multiple territories.