The Art and Science of Ernst Haeckel __smallpuzz Each cube features four different

Each cube features four different designs and measures 3" on each side when folded into a cube shape

The puzzles towards the front of the booklet are fairly easy but the ones at the back are nearly impossible

don't despair

Within the pages

The Art and Science of Ernst Haeckel __smallpuzz Each cube features four differentErnst Haeckel (1834 1919) was a German born biologist, naturalist, evolutionist, artist, philosopher, and doctor who spent his life researching flora and fauna from the highest mountaintops to the deepest ocean. A vociferous supporter and developer of Darwin's theories of evolution, he denounced religious dogma, authored philosophical treatises, gained a doctorate in zoology, and coined scientific terms that have passed into common usage, including