If you want to see living flora and fauna in all its splendour and glory then you must visit the Bellagio and their Botanical Gardens just off the main entrance into the hotel.
Everything is fresh, none of the plants are artificial in the Botanical Gardens. The scene changes every two weeks and usually has some sort of theme. For Chinese New Year, the flowers were in various shades of red, gold, and yellow and included a dragon topiary. The day we were there, the theme seemed to celebrate Easter. Topiaries and arrangements were adorned with pastel tulips, roses, and hydrangea.
A definite must-see. No fee to enter.