Fertilized eggs of the African clawed frog (Xenopus laevis) in the gastrula stage of development. The gastrula stage is marked by the invagination of the endoderm layer inside the blastocoel to form the archenteron. The archenteron, or primitive gut, eventually forms a digestive cavity, with an opening called the blastopore. (c) Michel Delarue
Credit
ISM
/ Michel DELARUE
Dimensions
2698 x 2362 pixels
Print Size @ 300 dpi
9 x 8 inches / 23 x 20 cm