Dinosaurs are believed to have a single body opening for urination, defecation, and reproduction- called a cloaca (Latin for sewer).
As The Huffington Post reports, paleontologists suggest that the ancestors of modern-day birds and reptiles had the same basic equipment, and that they coupled by pressing their cloacas together.
“All dinosaurs used the same basic position to mate,” explains Dr Beverly Halstead, an English researcher who was one of the first to tackle the subject.
“Mounting from the rear, he put his forelimbs on her shoulders, lifting one hind limb across her back and twisting his tail under hers.”
“The actual act of sexual intercourse, apart from any elaborate foreplay that may have come before it, need not take more than few seconds”, claims Digital Journal.
According to paleontologists, no penis is needed to perform a “cloacal kiss.” However, some species of birds have penises and crocodiles sport penis-like “intromittent organs,” which makes suppose that male dinosaurs might have had something similar as well.
Some of Halstead’s present-day counterparts also concur that that’s the way dinosaurs did it, writes The Daily Mail.
“I don’t think there’s much doubt about that,” Dr. Gregory M. Erickson, an evolutionary biologist at Florida State University, said in a telephone interview. But, he acknowledged, “It must have been a hell of a thing to see.”
Still, there are experts who have questioned this point of view and suggested that dinos romped in water. Biologist Stuart Landry said that big dinosaurs would just fall over on land and would have needed water to provide support.
“It’s going to be very touch and go. It’s an awkward thing,” Erickson said. Gregory Erickson, a paleobiologist at Florida State University, agreed.
“I’ve heard speculation that they did it in the water, but they’re not aquatic animals. Just because they’re large animals, doesn’t mean they can’t mate on land – after all, elephants do it,” he added.
Kristi Curry Rogers, Assistant Professor of Biology and Geology at Macalester College in Minnesota, suggested: “The most likely position to have intercourse is for the male behind the female, and on top of her, and from behind, any other position is unfathomable.”
Meanwhile, this week saw reports that hadrosaur skeleton 4th fossil to be damaged in last 2 months. Someone had destroyed a skeleton that was meant to be displayed at a new fossil museum in northern Alberta.
“This was the find of the season for us. There was a lot of excitement around it. Now it’s just kind of a salvage operation, trying to put back the pieces. But it’s going to be significantly less than what it was going to be,” said paleontologist Dr. Phil Bell, familiar with the matter. “It’s an irreplaceable loss.”
Bell went on and explained that the piece of the prehistoric beast was in good condition and would likely have meant a major exhibit at the Philip J. Currie Dinosaur Museum, which is due to open in a year.
“We’re so interested in every skeleton that comes out of here … every bone and every skeleton is really critical to understanding the ecology of these animals. They are irreplaceable. You can’t just go to the shop and get another one.”