eBooks - Science & Technology - Biology & Nature - Ernst Haeckel - The Evolution Of Man, V.1.
The Evolution Of Man, V.1. eBook
by Ernst Haeckel
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The Evolution Of Man, V.1. Summary
| There are many difficulties in the way of understanding this partial segmentation and the gastrula that arises from it. We have only recently succeeded, by means of comparative research, in overcoming these difficulties, and reducing this cenogenetic form of gastrulation to the original palingenetic type. This is comparatively easy in the small meroblastic ova which contain little nutritive yelk--for instance, in the marine ova of a bony fish, the development of which I observed in 1875 at Ajaccio in Corsica. |
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eBooks - Titles - Authors - Science & Technology - Biology & Nature - Ernst Haeckel - The Evolution Of Man, V.1.