The "stability" ( horse #12's happy place ) comes from the many FDA and Canada Health approvals.  The important thing is that all the "animals" ( the important ones anyway )  have loe cost accomodations on the ark and in-cabin GPS sytems that tell them where the ark is headed once the tide is allowed to rise and Knowah can un-tie the well knotted line.  I always thought of this ole gal as a "listing ship", but I like the ark analogy...big and stinky, slow water-going vessel that advertises cholera as it's best "on-ark activity". Tuck all the favorite animal into "cushy quarters" and give them an allowance.  Build it slow and methodically and have tidal charts that give reliable details on when the tide will rise and when the ark will be carried off to the tropical destination of choice....OH...and if any of the "less important" and annoying animals inquire, tell them the ark has been on course for "Bora Bora" ( aka boring boring ) for the last 20 years and they're not sure when they'll arrive but stay well out of sight ( aka keep the hull out of the way ) and be glad your "deep-theoria" is well founded and not just another disease you're likely to pick up on the long journey ; - )

Bon voyage.."Carnival has nothing on our Circus" - nice mission statement..
Thom - your "cruise director" ; - )