Q:

Why did the dinosaurs become extinct?

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Quick Answer

There is not sufficient proof as to why dinosaurs went extinct, but experts believe it is related to geological events, diseases, climate change and lack of plant life for sustenance. The last known dinosaurs, according to their fossils, existed about 65 million years ago.

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Full Answer

Over the years, there have been many theories and speculations about why dinosaurs went extinct. As more fossils are attained and technology allows science to advance further, palaeontologists have new theories. A persistent theory is that the sunlight was blocked by a large meteorite that crashed into the Earth. Without the sun, plants were unable to grow, and plant-eating dinosaurs would have died without a proper food source. Without herbivore dinosaurs, the carnivore dinosaurs also lose their food source.

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Related Questions

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    Were there any dinosaurs that swam?

    A:

    True dinosaurs were not swimmers. There were a number of very large aquatic reptiles that lived during the age of the dinosaur, but they were not technically dinosaurs. These creatures belonged to one of several other groups, such as ichthyosaurs, plesiosaurs and mosasaurs, which were types of marine reptiles.

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  • Q:

    Is it possible to clone dinosaurs?

    A:

    It is very unlikely that a dinosaur can be cloned. The essential element, a complete dinosaur genome, is extremely unlikely to exist after 65 million years. Genetic material is made out of deoxyribonucleic acid (DNA), and it breaks down over time.

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  • Q:

    How did the pterodactyl become extinct?

    A:

    Scientists do not know exactly why the pterodactyls died out approximately 65 million years ago. Some scientists believe that they died as a result of a meteor impact, while others believe climate change was to blame. Some scientists believe that volcanic gases were the leading cause, according to ABC Science.

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  • Q:

    How did the Brachiosaurus become extinct?

    A:

    According to the most popular theory, the Brachiosaurus dinosaur became extinct during the end of the Cretaceous period due to the impact of a meteor on Earth's surface.

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