Im asking because they laid eggs and Im curious if egg laying creatures have what can officially be called vaginas. If what mrs trex had was not considered a vagina, what is it?
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The available evidence shows that all dinosaurs probably lay eggs. For an egg-laying vertebrate, the passage way between the ovaries and the opening to the outside of the body is called the oviduct, not the vagina. The opening to the outside of the body is known as the cloaca. Birds, for example, have an ovary, an oviduct, and a cloaca, as do salamanders, frogs, lizards, turtles, and crocodilians. Dinosaurs, therefore have oviducts, not vaginas.