T. Rex

Barbara J. Feldman

The Tyrannosaurus rex, affectionately called T. rex, was one of the largest land-based carnivores of all time. It weighed about six tons, stood fifteen feet tall, had a nose-to-toe length of about forty feet and lived during the late Cretaaceous period.

  • Field Museum: SUE5 stars

    SUE, on display at the Field Museum in Chicago, is the largest and most complete dinosaur skeleton ever discovered. She was discovered in 1990 at a dig in South Dakota, by amateur fossil hunter Sue Hendrikson. Although T. rex SUE is often referred to as "she" (because of her name), paleontologists have not yet determined her gender. Best educational clicks are found in Explore More (photo and video galleries) and Behind the Scenes (All about SUE and Science of SUE.)

  • Scholastic Teachers: Dinosaurs: T. Rex4 stars

    Dinosaur expert Don Lessem answers two dozen T. rex questions posed by elementary students. "How many teeth did T. rex have?" "Could an allosaurus kill and eat a T. rex?" "How do we know that the Tyrannosaurus rex was the meanest dinosaur?" Below the Q&As, you'll find links to an online dinosaur activity, related articles, and a lesson plan titled "If You Meet a Dinosaur" (based on the book "If You Meet a Dragon" by Joy Cowley.)

  • Science Netlinks: Was T. Rex a Slow Poke?5 stars

    In the popular sci-fi movie Jurassic Park, a T. rex is seen running as fast a Jeep could drive. But in real life, how fast could a Tyrannasaurus actually run? This audio podcast (and transcription) describes how scientists have tackled the issue of T. rex speed. "The bigger you are, the more leg muscle mass you need to run fast. But all that extra leg muscle can weigh you down, which in turn makes it harder to run. In other words, the math starts working against you ... Despite this, many scientists have estimated that the enormous T. rex could run at speeds up to 45 miles per hour."

  • University of California Museum of Paleontology: The Tyrant Lizards5 stars

    "A current topic in paleontology that has received much popular press is the question of whether T. rex (or other Tyrannosauridae in general) were predators or scavengers. Let's explore this issue." This one-page overview from the paleontologists at UC Berkeley, provides a summary of what is known about these huge dinosaurs, and introduces current issues. The museum has a dinosaur speed page (linked to from within this article) that explores evidence that is helping scientists determine how fast these huge beasts might have run.

  • University of Kentucky: Draw T. Rex4 stars

    "The instructor and students will use the appearance of modern animals to reconstruct what an ancient animal, a Tyrannosaurus rex may have looked like when it was living." Created by Stephen F. Greb, of the Kentucky Geological Survey at University of Kentucky, this fun science lesson (for grades four and up) demonstrates "how scientists determine what prehistoric animals looked like based on their bones." It includes four PDF worksheets, including a skeleton sketch of a dinosaur head to be used to draw a Tyrannosaurus rex. At the bottom of the page, you'll find half-a-dozen links to more online resources.

  • Honorable Mentions

    The following links are either new discoveries or sites that didn't make it into my newspaper column because of space constraints. Enjoy!


    Cite This Page

  • Feldman, Barbara. "T. Rex." Surfnetkids. Feldman Publishing. 1 Mar. 2011. Web. 28 Jul. 2014. <http://www.surfnetkids.com/resources/t-rex/ >.


  • About This Page

  • By . Originally published March 1, 2011. Last modified March 9, 2014.

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