The team of scientists in the United States concluded that the presence of a long tail helped dinosaurs to move, reports Science Advances. They explained, the tail saved animals to 18 percent of energy when moved.
Researchers simulated the movement of the body of the body of the body of the body (Coelophysis Bauri) and found out that the tail in motion saved energy, compensating for the rotational moment of the body of an ancient lizard. In their work, scientists have used the model of the movement of the birds Crested Tinama (Eudromia Elegans).
They created a computer model in which they used slow (0.39 meters per second) and quick (2.62 meters per second) Move without using any experimental data. It turned out that the maximum speed of the lizard reached 6.65 meters per second.
Detailed kinematics analysis of the model showed that the retail movements were closely associated with the movement of the hind limbs, compensating for an arising angular moment. Researchers noted that the tail was performed from dinosaurs important dynamic functions, by analogy of human hands when walking.
Previously, scientists of Barcelona and Zaragoza universities in Spain found out that large-scale volcanic eruptions did not affect the massive disappearance of animals, including dinosaurs, at the end of the chalk period. They tied the mass extinction in the chalk period with a drop of an asteroid to the ground.