Feb 3, 2025 · Both living, avian dinosaurs and crocodilians have a single external opening under their hips called a cloaca, which is Latin for “sewer.” The single external slit is the single exit for a...

Jun 5, 2015 · By using what scientists call extant phylogenetic bracketing, or looking at T. rex ’s closest living relatives, we can infer that the predator had a penis tucked up inside that cloaca.

Jan 19, 2021 · The discovery reveals how dinosaurs used this multipurpose opening — scientifically known as a cloacal vent — for pooping, peeing, breeding and egg laying.

Jan 20, 2021 · Paleontologists reconstructed a dinosaur cloacal vent for the first time, giving insight into how dinosaurs may have used this opening to defecate, urinate, breed and lay eggs—just like birds...

Dec 15, 2023 · Dinosaurs, like their modern-day relatives birds and crocodiles, likely engaged in a unique mating technique known as the “cloacal kiss.” This process involved the close physical alignment of the male and female dinosaurs’ cloacas, which allowed for the transfer of sperm and fertilization of eggs.

Oct 21, 2020 · Bird cloacae are round or square and normally covered up by feathers, unless you’ve ever seen an ostrich evacuate and wondered what the hell you’re looking at. Crocodiles …

Apr 14, 2011 · Some birds reproduce by squirting semen from one cloaca at another in what modern ornithologists call a "cloacal kiss." Their dino ancestors may have engaged in that rather unsexy form of sex...

There’s a theory that the smaller, slightly comical, arms of the iconic T-Rex could have been used to latch onto the back of a mate. But they may have also simply sat down to do the business. 6. Birds and crocodiles reproduce using an organ called the cloaca, an all-purpose opening used for urination, defecation, and reproduction.

Jan 21, 2021 · In a study published yesterday in the journal Current Biology, Vinther and his colleagues, paleoartist Robert Nicholls and University of Massachusetts Amherst biologist …

One such fossil— a bone-filled pat attributed to T. rex—seems to have moved through the digestive system quickly. Having a fossilized excretory tract to study might help explain if a morsel’s rapid trip from mouth to cloaca was normal, or if …