Gypsum ram's horn, an example of twinning. Carnegie Natural History Museum, Pittsburgh, Pennsylvania. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sharp, Millard H. |
Taille de l’image : | 5372 px × 3993 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |