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Embryos of three mammals

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Embryos of three mammals.jpg Elephant employed to build a railway in AfricaMiniaturesEsquimaux DogElephant employed to build a railway in AfricaMiniaturesEsquimaux DogElephant employed to build a railway in AfricaMiniaturesEsquimaux DogElephant employed to build a railway in AfricaMiniaturesEsquimaux DogElephant employed to build a railway in AfricaMiniaturesEsquimaux DogElephant employed to build a railway in AfricaMiniaturesEsquimaux DogElephant employed to build a railway in AfricaMiniaturesEsquimaux Dog

(At three corresponding stages of development).

B = Bat (Rhinolophus) G = Gibbon (Hylobates) M = Man (Homo)