A recent report from Christian Science Monitor has averred that the Psittacosaurusonce walked on four feet and later graduated to walk on two feet. This dinosaur was also dubbed as"parrot dinosaur".

The dinosaur lived approximately 100 million years ago in China. According to Qi Zhao, a Ph. D. student at the University of Bristol, a team of experts studied approximately 15 fossil specimens. He is a researcher at the Institute for Vertebrate Paleontology in Beijing. He fleshed out the details that they studied the specimens between the age group of one and 10.

The published findings in the scientific journal Nature Communicationshave uncover that this species evolved with time. According to the research, animals came across changes when they slipped out of the water to stay on land. Earlier, the mammals started as tetrapods or four-legged animals. There are many mammals that still live on four legs.

According to the researchers, this evolution was required to acclimatize to the environmental pressures. This bipedalism helped them in saving energy for locomotion and movement. This also helped them in developing bigger brains. This process of increasing brain with evolution is defined as encephalization. The change occurred 500,000 years ago.

The research is still undergoing as the researchers are joining the dots for the study.