Bilateral symmetry in the drawings on the back of a ray, at the aquarium of Genoa.
A symmetry of type D4 on the umbrellas of these young medusae, photographed at the Aquariu...
Iphiclides podalirius, a leptidopterus of the family of the Papilionidi, very common in It...
The Lumbricus terrestris, an anellid that lives in the soil. Earthworm activity is very im...
The drawing of this earwig puts in evidence a dihedral symmetry of type D1.
The drawing of a butterfly; the body is divided in head, thorax, abdomen. Wings and legs a...
Lucanus tetraodon, a coleoptera that lives in the woods. The males have very strong jaws f...
