Noah's floating zoo! (3)
I believe the answer is:
ark
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">noah's floating zoo</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ark that I've seen before include "Noah's boat" , "Great biblical boat" , "State" , "The earliest vessel?" , "Animal transporter" .)