Take on the extra challenge of a round puzzle! Like a jigsaw puzzle, every organism is an integral part of a larger, vital whole. Puzzle also features the quote "This is the assembly of life that took a billion years to evolve. It has eaten the storms, folded them into its genes, and created the world that created us. It holds the world steady" from Edward O. Wilson. Great for the whole family or one determined puzzler. Finished puzzle is 23" x 23."