T-Rex and Triceratops were two incredibly powerful dinosaurs that roamed the Earth together some 65 to 68 million years ago.

The blockbuster "Jurassic Park" roars into its 20th anniversary on June 11, 2013, and boy has the science of T. rex and company evolved over the years.

Wooly Mammoth Tusk And Meteorite Also Sold In Auction That Raked In $1.55M. ... T-Rex Skull Auctioned For $276,000. March 26, 2007 / 10:48 AM EDT / AP ...

Plumed T. rex? If filmed today, the science suggests many of "Jurassic Park" dinos would look a bit more Tweety Bird than Terrible Lizard. ... A mammoth boost to cloning?

It may be possible to clone a mammoth. It would be an enormous technical challenge, because the freezing process which preserves the dead animals also tears up the cells. Normal cloning techniques ...

T. rex, Mammoth and Quagga Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any ...