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L'ombra di una farfalla, fotografata nel complesso di Angkor Wat, in Cambogia.
The feather of a peacock provides an example of dihedral symmetry of type D1.
A sleeping cat breaks the symmetry of this frieze of type *22∞, at the Palais at the Bah...
Section of a seashell of Nautilus, a mollusc that had been considered extinct until 1829, ...
Graphosoma lineatum, a bug that lives of juices sucked from plants. The photo puts in evid...
Una testuggine in una riserva faunistica vicino a St Louis (Senegal).
