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A whole lot of Tyrannosaurus rexes used to rule the planet.
Seth Borenstein
One Tyrannosaurus rex seems scary enough. Now picture 2.5 billion of them. That’s how many of the fierce dinosaur king probably roamed Earth over the course of a couple million years, a new study finds.
Using calculations based on body size, sexual maturity and the creatures’ energy needs, a team at the University of California, Berkeley figured out just how many T. rex lived over 127,000 generations, according to a study in Thursday’s journal Science. It’s a first-of-its-kind number, but just an estimate with a margin of error that is the size of a T. rex.
• Source: Associated Press
One Tyrannosaurus rex seems scary enough. Now picture 2.5 billion of them. That’s how many of the fierce dinosaur king probably roamed Earth over the course of a couple million years, a new study finds. Life-sized Tyrannosaurus rex models are unloaded for a dinosaur exhibition in Potsdam, Germany, in 2006. Source: Associated Press
Using calculations based on body size, sexual maturity and the creatures energy needs, a team at the University of California, Berkeley figured out just how many T. rex lived over 127,000 generations, according to a study in today s journal Science. It’s a first-of-its-kind number, but just an estimate with a margin of error that is the size of a T. rex.
Study: 2 5 billion T rex roamed Earth, but not all at once | 100 5 The Eagle – Jonesboro, AR eagle1005.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eagle1005.com Daily Mail and Mail on Sunday newspapers.
Using calculations based on body size, sexual maturity and the creatures’ energy needs, a team at the University of California, Berkeley figured out just how many T. rex lived over 127,000 generations, according to a study in Thursday’s journal Science.
6 hours ago in Features
FILE - In this Tuesday, March 7, 2006 file photo, life-sized Tyrannosaurus rex models are unloaded for a dinosaur exhibition in Potsdam, Germany. A study released on Thursday, April 15, 2021 calculates that 2.5 billion Tyrannosaurus rex prowled North America over a couple million years or so, with maybe 20,000 at any given time. (AP Photo/Sven Kaestner) Photo: Associated Press
By SETH BORENSTEIN AP Science Writer
One Tyrannosaurus rex seems scary enough. Now picture 2.5 billion of them. That’s how many of the fierce dinosaur king probably roamed Earth over the course of a couple million years, a new study finds.