Psittacosarus is a 4ft tall, 6ft in length (Psittacosaurus, Wikipedia, 25, May 2017, 28, May 2017.) dinosaur with a short parrot like beak. Usually a green or brown color. The Psittacosaurus had these quilts on its back or tail that were often used to spike at any predators that tried to harm them. They could run 40 mph, not to fast but also not the slowest. The Psittacosaurus was one of those dinosaurs that were able to walk on all four as well as walk on their two back legs.That lived between 123.2 and 100 million years ago during the Cretaceours period (Prehistoric-wildlife, Psittacosaurus, Prehistoric Wildlife, Web. 23, May. 2o17). Known to live in the lands where there was lots of vegetation dominant by shrubs, grasses, and herbs. They ate though plants, like cycad, and it ate all day. The Psittacosaurus was known to most likely live in herds. where they would often leave their eggs in groups in the same nest, or nesting area (thought to be for better protection). Though there was no evidence of them taking care of their young. The Psittacosaurus fossils were discovered in what are now China, Mongolia, Russia, and Thailand. (Psittacosaurus, Wikipedia, 25 May 2017, 28 may 2017)
Nature selection is one of the major mechanisms that drive evolution. it is also the process in nature by which organisms containing certain genotypic characteristics help adjust organisms to a certain environment. This helps them survive and reproduce (The University of California Museum of Palenotology, Natural selction, Understanding evolution, 22 August 2008, 24,May 2017) . For example the Psittacos (child of Psittacosaurus and Phorusrhcos) has strong arms for swimming, running and digging. When the Psittacos need to swim because of flooding it has its strong arms that will take on any rushing strong waters. Those legs are also useful for running away, which is needed a lot in a Psittacos life because most all dinosaurs will eat the Psittsacos and sometimes they have no other choice but to run. The digging helps them to make under ground tunnels where they can hide for survival and where they can nest their eggs for better protection from any predators. Their strong legs also help the Psittacos when hatching to kick off the egg shells.To back that up the beak also helps them get through the egg shell a lot easier and faster which prevents it from suffocating, unlike a lot of dinosaurs that struggle to get out of their egg shells and sometimes suffocate the Psittacos has the advantage with its mighty beak to get through the egg shell. . The Psittacos has a hick foot long beak with a sharp pointy tip, this mutation helps them find insects when not available to greens, and when available to plants it is helpful to pierce through those tough plants. Sometimes they use their beak for defense when being attacked they will peck at the predator trying to harm them. To protect themselves from predators they also have their mighty long tail with quilts all along it (that will harden when fears or scared ) to spike at the predator leaving the body pierced. These quilts will also help the Psittacos to find a mate and to detect when there is danger or an extreme climate change.
One day everything was quiet. Not a lot of Dinosaurs were out, but the few that were out were going crazy running back and forth screeching and out of control. It was as if the ones that were no where to be seen were hiding. But from what? everything was so still there was no danger in sight, nothing. But then there was a red flaming light spotted in the sky coming closer and closer getting bigger and bigger. Then a flashing white light laid in the sky for a few minutes. The sky turned red, filled with dust and the water was boiling the vapor from the water was rising mixing with the dust creating a few mudslides. The volcanoes were shaking sick. About ready to throw up all its red flame liquid and its burning rocks. There were flying dinosaurs on the ground nearly alive, weak as can be. Heads were poking out of here and there looking out for danger looking out to see if it was safe to walk out from where ever they were hiding. When they finally stepped out into the open and they were looking for their herds or their partner they discovered a great crack in the earth splitting it, impossible to cross. The families were separated and the chances of mating with its own species were extremely low. But there was still reproducing with the same species. Over hundreds of years something changed.
The Psittacos was the result of the genetic drift from the Psittacosarus and the Phorusrhacos. The Psittacosaurus was feeding in the shrub lands and a Phorusrhacos female was approaching the same feeding ground . The Psittacosaruss felt the female Phorusrhacos and his quilts spiked up showing the Phorusrhacos the colors and the amount he had. She was impressed and got closer. Both dinosaurs were attracted to each other and fed together The Phorusrhucos was attracted to the quilts on the Psittacosaurs back and tail, she found them as a good defense trait and the Psittacsaurus strong legs were also very attracting and even more when she saw the tunnels he made she found it excellent for nesting. The Psittacosarus found the Phorusrhacos long legs and her beak he liked the length of her beak thinking how much easier it would be eating those tough plants. They soon mated. Through out years and years the key traits started to mutate on the off springs of one another.They later on mutated into a Psittacos dinosaur. The baby dinosaurs kicked with their long and strong legs and pecked with its thick but sharp ended beak at the stronger shelled areas. The babies were born, looking more like the Psittacosarus but with a longer pointier beak and longer legs.
And the Psittacosaurs strongly evolved.