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Thanks to a new fossil discovery, we suddenly know a lot more about dinosaur sex – Salon

The dinosaur “butt” discovery is actually a cloaca, a cavity used for reproduction and waste disposal common among many vertebrates

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No one predicted that January 2021 would be a banner month for dinosaur news. Last week an article in the scholarly journal Cretaceous Research revealed that dinosaur bones in Argentina may have belonged to a creature so massive that it would have been the largest land animal know to have existed. Now a study published in the journal Current Biology gives us an up close look at these animals — namely, at their butts.
A team of scientists from the University of Bristol and the University of Massachusetts…

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