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  1. Tyrannosaurus - Wikipedia

    The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially t-rex, is one of the best represented theropods. It lived throughout what is now …

  2. REX Definition & Meaning - Merriam-Webster

    The meaning of REX is an animal (such as a domestic rabbit or cat) showing a genetic recessive variation in which the guard hairs are very short, sparse, or entirely lacking.

  3. Tyrannosaurus rex | Description, Dinosaur, & Facts | Britannica

    Oct 31, 2025 · Tyrannosaurus rex, species of large predatory theropod dinosaurs that lived during the end of the Cretaceous Period (about 66 million years ago) known from fossils found in the …

  4. Montana rancher begins to excavate possible record-setting T-Rex

    Nov 23, 2025 · "Will this be the biggest T-Rex ever found? That remains to be seen. He may just have a big head and big teeth. Animals are different proportions," said Phipps.

  5. Tyrannosaurus rex - Smithsonian Institution

    Apr 1, 2014 · “Tyrannosaurus” is Greek for “tyrant lizard,” and “rex” means “king” in Latin. So, Tyrannosaurus rex was “King of the Tyrant Lizards.” When and where did T. rex live? T. rex …

  6. Tyrannosaurus rex - National Geographic Kids

    But Tyrannosaurus rex was one of the fiercest predators of all time. T. rex had a massive body; a mouth full of 60 eight-inch-long, supersharp teeth; and the strongest bite of any land...

  7. 7 Questions About Tyrannosaurus rex - AMNH

    Uncover the secrets of T. rex, from its towering size to its powerful bite, with these seven common questions about the king of dinosaurs.

  8. How Big Was the Giant T. Rex? Size, Strength, and Science

    2 days ago · The Tyrannosaurus rex is the most recognized dinosaur species, symbolizing brute strength and immense scale from the Late Cretaceous period. Roaming western North …

  9. Tyrannosaurus Rex Was the Tyrant Lizard King - HowStuffWorks

    May 27, 2024 · Tyrannosaurus rex, one of the most iconic dinosaurs, had exceptional depth perception and a strong sense of smell, making it a formidable predator. The species was …

  10. 10 Facts About Tyrannosaurus Rex, King of the Dinosaurs

    May 13, 2025 · Most people assume that the North American Tyrannosaurus rex —at 40 feet from head to tail and seven to nine tons—was the biggest carnivorous dinosaur that ever lived.