DNA discovered in 75 million-year-old dinosaur fossils

Researchers from China and the US have discovered DNA and other organic materials in 75 million-year-old dinosaur fossils, challenging the belief that DNA only lasts around a million years. The discovery was made while studying Hypercosaurus skull fragments, revealing proteins, chromosomes, and cartilage cells. These dinosaurs, herbivores from the late Cretaceous period, lived in Canada and the USA.

What recent discovery challenges the belief about the lifespan of DNA?

• DNA found in 75 million-year-old dinosaur fossils

• DNA found in ancient human remains

• DNA found in meteorites

• DNA found in deep-sea creatures

What additional materials were found alongside DNA in the dinosaur fossils?

• Proteins, chromosomes, and cartilage cells

• Only chromosomes

• Only proteins

• Only cartilage cells

Which dinosaur species' fossils were studied for this discovery?

• Tyrannosaurus Rex

• Stegosaurus

• Triceratops

• Hypacrosaurus

Where did Hypacrosaurus dinosaurs live during the late Cretaceous period?

• Canada and the USA

• Europe and Antarctica

• Africa and Asia

• Australia and South America

What type of diet did Hypacrosaurus dinosaurs have?

• Carnivorous

• Insectivorous

• Herbivorous

• Omnivorous