Embryonic development,historical artwork. This shows the process of gastrulation,where cells at one position on the embryo start to move inwards forming a tube. The cells then differentiate into the 3 germ layers; the ectoderm (outer),endoderm (inner) and mesoderm (middle). Illustration by Ernst Haeckel,published in the 1891 edition of his Anthropogenie | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kulyk, Mehau |
Taille de l’image : | 2887 px × 4882 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |