Say I have a structure like this:
Mammals
Rodents
Mice
Gerbils
Felines
Ocelots
Birds
Songbirds
Raptors
Eagles
Reptiles
Lizards
Etc
I would like for the main menu to display: Mammals, Birds, Reptiles.
But when you are on, for instance, Mammals, or any of it's children. I wish for there to be an additional menu that shows all of the main parent and children (so in this case mammals, rodents, mice, gerbils, felines, ocelots).
Is there any way to set this up or a module that would help? I guess that the first step would be page groups, but I don't see reference to this hierarchy other than creating automatic menus.
(using drupal 7)