Do not miss the opportunity to visit this zoo when in Paris.However,there is one major problem.All the following are grouped together - Zoo,Botanic Gardens & Old and Modern Natural History Museums.Really, you need a day to see each properly.Remember that you are in an area with many other non-zoological distractions & your wife will want to go shopping & do routes on the river "bateaus" etc.Take three days & do not underestimate the old(Cuvier)Natural History Museum.Make a deal with your wife :-50% natural history / 50% shopping, art galleries, museums, restaurants, etc & you have the win-win situation for a perfect week in Paris.