A new study suggests that two-legged dinosaurs like the mighty T. rex wag their tails while running to stay balanced, just as humans swung their arms when walking and running.
While previous studies treated the tail of such land-dwelling dinosaurs as a static extension of the pelvis, the current three years of research, published Wednesday in the journal Science Advances, uses computer simulations to model the movement of small carnivorous dinosaurs. used. coelophysis who lived about 210 million years ago.
“This research gives us more information about how dinosaurs moved and may very well change the way we see dinosaurs depicted in movies such as Jurassic Park In the future,” Queensland Museum Network CEO Jim Thompson said in a statement.
The team of scientists, which included paleontologists, engineers and biomechanics experts, demonstrated a previously unrecognized, “critical and 3D dynamic role” of the tail while these dinosaurs walked and ran.
“Rather than being just a static imbalance, simulations indicate that the tail played an important dynamic role … analogous to the swinging arms of humans,” the scientists wrote in the study.
“I was very surprised when I first saw the simulation results, but after running several further simulations to make the tail heavier, lighter and even with no tail, we were able to conclusively demonstrate Were able that tail wagging was a means of controlling angular speed during their gait,” Peter Bishop, a research fellow at Harvard University in the US, said in a statement.
Angular momentum, the scientists explained, is the physics principle that determines how ballerinas and figure skaters can execute a pirate.
“Essentially, our findings suggest that dinosaurs prefer tyrannosaurus And velociraptor When they ran they wag their tails from side to side, which helped them stay balanced,” Dr Bishop said.
“We hypothesize that this mechanism is also present in many other bipedal non-avian dinosaurs, and our methodology provides new avenues for exploring the functional diversity of dinosaur tails in the future,” the scientists wrote.
The findings spark more questions about the possible different functions of the tail and its evolution in dinosaurs.
“These state-of-the-art, three-dimensional simulations show that we still have much to learn about dinosaurs,” said co-author John Hutchinson and Professor of Evolutionary Biomechanics at the Royal Veterinary College in London.
Credit: www.independent.co.uk /