Compare & Contrast: Egypt & China. Ancient Egypt and ancient China had many cultural differences and similarities. While Chinaâs form of government is monarchy, Egyptâs is theocracy. As for their religious beliefs, even though theyâre both polytheistic, they have different Gods. Another difference in the two civilizations is the environment.
Palaeontologists have found what is likely to be the oldest known dinosaur, filling in a yawning evolutionary gap. A study in Biology Letters describes Nyasasaurus parringtoni, a new species from 10-15 million years before the previous earliest dinosaur specimens.
Dinosaurs and birds both thrived in the Cretaceous period between 145 and 65 million years ago. The Archaeopteryx, long considered the oldest bird, lived 150million years ago, while dinosaurs emerged earlier around 200million years ago. However, Professor Ruben said he didn't discount birds and dinosaurs sharing an ancient ancestor such as the small, reptilian 'thecodonts' that roamed Earth 250million years ago.