Despite the huge number of dinosaur fossils found, from bones to feathers, precious little exists in the fossil record to explain dinosaur defecation, urination, or copulation. Thankfully, all three ...
Jan. 19 (UPI) --For the first time, scientists have described the cloaca, or vent, of a dinosaur -- the all-purpose opening used for reproduction and waste disposal. Many mammals have distinct ...
The anatomy of the cloaca of male Triturus v. vulgaris was studied by light microscopy, including microcomputer generated three-dimensional reconstructions of serial sections. Five types of cloacal ...
A reconstruction of the only fossilised dinosaur cloaca in existence may help illuminate how the prehistoric animals mated. The cloaca is an all-purpose opening on the body of many animals – including ...
This cloaca is more than 100 million years old, and it did a lot of work for this extinct species. By Katherine J. Wu The world’s oldest known all-purpose orifice sits in a fossil display case in the ...
In some good news for the world’s only flightless parrots, the birds have managed to avoid dangerous antibiotic-resistant ...
(This article forms a part of the Science for All newsletter that takes the jargon out of science and puts the fun in! Subscribe now!) The transition from fins to limbs is one of the most important ...
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