Implantation in the ferret: epithelial penetration.
D000818:Animals; D002335:Carnivora / Q000502:physiology*; D002448:Cell Adhesion; D010064:Embryo Implantation; D004847:Epithelial Cells; D005260:Female; D008722:Methods; D008854:Microscopy, Electron; D010063:Ovum / Q000166:cytology; D011247:Pregnancy; D013997:Time Factors; D014327:Trophoblasts / Q000166:cytology; D014599:Uterus / Q000166:cytology*