How fast was T. Rex?

Discussion in 'Human Science' started by wet1, Jun 11, 2002.

  1. wet1 Wanderer Registered Senior Member

    How fast was the dinosaur T. Rex?

    In the movie classic Jurassic Park, T. Rex is shown as being able to catch a car. But studies into the muscle mass needed for a creature that size indicate that such speed might not be possible for a huge animal the size of T. Rex. As the mass of a creature goes up so does the needed amount of muscle to move the body. The calculated minimum amount of muscle mass needed for a chicken to run was figured at 4.7% of it’s body mass in leg muscle in each leg. The actual figure of a chicken’s leg muscle is around 8.8% of it’s body mass. Using the same model, the arrived figure for a dinosaur the size of T. Rex to run, it would need around 43% of it’s total body mass to be leg muscle. It is readily seen that such can not be the case for anyone who has seen a picture of what we believe T. Rex looked like.

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