Changes

[[Young Earth Creationism|Young Earth Creationists]] believe that they became extinct sometime since the [[Great Flood]], dated to approximately 4,500 years ago.  

[[Young Earth Creationism|Young Earth Creationists]] believe that they became extinct sometime since the [[Great Flood]], dated to approximately 4,500 years ago.  

[[Theory of evolution|Evolutionary]] scientists believe that ''Tyrannosaurus'' lived at the end of the [[Cretaceous]] period, dated to approximately 65 million years ago, and that modern birds are the descendants of dinosaurs such as T-rex. <ref>[http://www.cnn.com/2007/TECH/science/04/12/dinosaur.reut/index.html Bird Family Ties]</ref><ref>http://www.livescience.com/animalworld/ap_trex_tissues.html T Rex Tissue</ref>

[[Theory of evolution|Evolutionary]] scientists believe that ''Tyrannosaurus'' lived at the end of the [[Cretaceous]] period, dated to approximately 65 million years ago, and that modern birds are the descendants of dinosaurs such as T. rex. <ref>[http://www.cnn.com/2007/TECH/science/04/12/dinosaur.reut/index.html Bird Family Ties]</ref><ref>http://www.livescience.com/animalworld/ap_trex_tissues.html T Rex Tissue</ref>

==References==

==References==