Sea urchins my favourite I always look for those during holidays
Females of this unusual octopus species sequester themselves in thin, translucent shells with which they drift across the open seas. Paper nautiluses, also called argonauts, secrete the shells to serve as cases for their eggs.
Her Sea Shells Photograph
The Golden Spiral: Complex Geometries in Nature
The Golden Spiral: Complex Geometries in Nature - WebEcoist
Fragging Zoanthid, Palythoa, Button Polyp - Help Save the Reef
Fractal patterning in a Small white butterfly egg. Coloured scanning electron micrograph (SEM) of an egg of the small white butterfly (Pieris rapae).