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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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The researchers note that their models did not include every structure that would have affected how the dinosaurs stood.

From Science Daily Jul. 20, 2026

The American Museum of Natural History gave fans the chance to rub shoulders with dinosaurs while watching Messi, 39, fail to steer Argentina to its fourth World Cup.

From Barron's Jul. 19, 2026

The king of dinosaurs has reclaimed his throne.

From The Wall Street Journal Jul. 14, 2026

For the technology available at the time, the dinosaurs looked incredibly realistic and left viewers transfixed.

From BBC Jul. 13, 2026

And if there are swamps, why not cyacads and dragonflies and perhaps even dinosaurs on Venus?

From "Cosmos" by Carl Sagan

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