A photo of an orchid (taken from the right point of view) is a nearly-perfect example of a...
Leaves of black Carpinus (Ostrya carpinifolia), a xxx that can be found in xxx. The leaf, ...
Plant with a succulent trunk with photosynthetic function and leaves transformed in thorns...
Plant with a succulent trunk with photosynthetic function. The leaves are transformed in t...
A rhombic triacontahedron: the faces are rhombi that are all the same, that meet in vertic...
The shapes inside the tiles break up the schema of symmetry of the hexagonal tiles which l...
From the point of view of symmetry, a photo of the flower of viola (from the right point o...
A courgette flower (Cucurbita pepo) with some seeds inside it. If we cut it crosswise, we ...
A seed of pea (Pisum sativum), a plant belonging to the family of the Papilionaceae. If we...
A fruit of pear (Pyrus communis) with seeds. By cutting along the "equator", we put in evi...
