Every radiolarian skeleton achieves perfect geometry without a single neuron to guide it — symmetry written in protein alone.
Siliceous spicules arrange into icosahedral lattices rivaling the tracery of Gothic cathedrals.
The twelve-fold symmetry of Aulonia hexa maximizes structural strength while using the least material.
Haeckel rendered organisms smaller than a pinhead, each a complete cosmos preserved in ink and light.