Shark Moms, a natural predator of the Octopus Mom, are powerful and important (we know this because they tell us every chance they get). Solitary creatures, Shark Moms are just one conference call away from missing the kindergarten Christmas play or, for that matter, Christmas. Though sleek and stunning, Shark Moms can never stop moving, lest they die. This little known fact goes a long way in accounting for their predilection to reading email on their Blackberry while changing diapers and offering to host playgroup, only to be called in to the office. They're tough, but they're holding all their fabulousness together by a thread. That's their little secret and it makes them more vulnerable than they like.