T-rex Dinosaurs are reptiles that lived long ago. They become extinct long ago. Here are some theories that wiped out the dinosaurs Death from above - a giant asteroid falls to earth making a big blast and filling the atmosphere with dust and debris that altered the climate Vulcanic fury - vulcanic eruptions choked the skies with dust and debris altering climate Still this two theories are yet to be precise. Scientist still develops and dig up further evidence of extinction. Now this is one of my favorite dinosaur: the Tyrannosaurus also known as T-rex

T-rex are said to be the king of all dinosaurs because of its strong jaw, large teeth and massive build.