Display: Second level of a defined category

Hello friends,

I’m working on my first WP skin and I need some help.

I have searched everywhere and it’s quite possible I may have seen the answer but did not understand.

I have a category navigation on my website:

CATEGORIES
dogs
cats
rabbits
wolves

I want to add a second navigation that will be displayed for every single page, regardless of the category of the page that is being displayed. Example:

DOGS
guard dogs
watch dogs
stray dogs
humane society

I cannot get the DOGS second-level navigation to work. The only solution I can think of, other than doing it the right way, is to just code the navigation in html and not use the php include. I need someone to please fill in this blank for me:

<?php _e('Dogs'); ?>
<?php wp_list_<strong>?</strong>('<strong>?</strong>'); ?>

I should note that this is on my blogroll, and not on a page.
Help would be appreciated! I cannot stop staring at this screen until this gets done.