What are the similarities and differences between the Chicken and the Tyrannosaurus Rex?
At first, scientists thought that dinosaurs were related to reptiles, but with research from bone and fossil material, they have formed a different view. In 2003, when scientists Jack Horner and Mary Schweitzer discovered unfossilised material inside the femur bone of a Tyrannosaurus Rex in Montana, America, they, and other zoologists and palaeontologists all over the world, documented that the Chicken and the Ostrich are living animals distantly related to the extinct theropod dinosaur Tyrannosaurus Rex (T-Rex). They said the next closest match is the Alligator.
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Fossils in Scotland revealed information about the evolution of the Scorpion, an invertebrate arthropod arachnid – and how it left the ocean to live on land.
Most arthropods (insects, centipedes, and crustaceans, such as crabs) currently living on land are small. From the Scorpion fossils found in a rock quarry near Edinburgh in Scotland in 1984, scientists (palaeontologists) found large specimens, said Ian Rolfe from the Royal Museum of Scotland.
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The Archaeopteryx (Archaeopteryx lithographica) is a small pterosaur, a cousin of the dinosaur, in the Archaeopterygidae family. Archaeopteryx means ancient wings.
Palaeontologists think it was the oldest known bird that was on the Earth. It lived in the Late Jurassic period around 150 million years ago in the land that it now called Europe.
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