EuroGraphics The Tree of Life 1000-Piece Puzzle Box size: 10" x 14" x 2.37". Finished Puzzle Size: 19.25" x 26.5". Charles Darwin sketched the branches of a tree in one of his notebooks to illustrate the idea that all life forms branched out from a common ancestry. Since then the tree of life image has persisted as an aid to understanding evolution. Strong high-quality puzzle pieces. Made from recycled board and printed with vegetable based ink. This superior quality puzzle will delight and educate all at the same time.