Seashells. Shells of unidentified sea snails. These shells are calcium-rich structures secreted by gastropod molluscs for protection. The animals can withdraw entirely into their shells when threatened. The chambers at the apex are the oldest,with successively larger whorls being added as the animals grow | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gustoimages |
Taille de l’image : | 3402 px × 4157 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |