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dinosaurs

Cultural  
  1. Reptiles, now extinct, that were the dominant life form on Earth for many millions of years. The name dinosaur comes from the Greek words for “monstrous lizard.” Dinosaurs became extinct suddenly, about sixty-five million years ago. Scientists now believe that their extinction was caused by the impact of a large asteroid on the Earth.


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Some dinosaurs were very large and had small brains — factors that may in part have led to their extinction. The term is often used to refer to something or someone that is antiquated and unable to adapt to change: “The old cavalry generals couldn't adjust to the use of tanks — they became dinosaurs.”

Some scientists believe that modern birds are the descendants of dinosaurs.

Commonly known dinosaurs include Tyrannosaurus rex, Brontosaurus, Stegosaurus, and Triceratops.

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Although much smaller than the asteroid associated with the extinction of the dinosaurs, an object of this size could still release an enormous amount of energy when traveling at cosmic speeds.

From Science Daily ● Oct. 21, 2026

Megaraptors are regarded as the most mysterious of the large, meat-eating dinosaurs, as few megaraptor fossils have been found.

From BBC ● Oct. 14, 2026

By comparing the fragment with fossils from related dinosaurs, researchers were able to estimate what this long-extinct animal might have looked like and how it lived.

From Science Daily ● Oct. 14, 2026

They compared the fossil with skulls and brain cases from tyrannosaurs, spinosaurs, raptors and other two-legged meat-eating dinosaurs.

From BBC ● Oct. 14, 2026

The first thing I want to tell you is this: They are older than dinosaurs, older than insects, older than trees or flowers or ferns or fungi or seeds.

From "The Thing About Jellyfish" by Ali Benjamin

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