my $sth = $dbh->prepare(
    "CREATE TABLE IF NOT EXISTS categories
    (
       id int auto_increment NOT NULL,
       url VARCHAR(300) NOT NULL,
       primary key  (id)
    )");
$sth->execute();

##</code><code>##

Large Animals  -   Small Animals   - Ocean Life
- 4-legged     -   4-legged        - Under 12"
- 2-legged     -   2-legged        - 12" - 3'
               -      *invertebrate
                          *carnivore
                          *herbavore