A short introduction to the study of the extinction of the dinosaurs

<Tab/>Various theories have been put forward for the mass-extinction about 65 million years ago at the end of the cretaceous period that caused the extinction of the dinosaurs: These range from disease to tropical cyclones and even alien abductions have been suggested. However the most popular theory is that a giant meteor struck the Earth. This came about from guesswork and from a high level of the rare amount Iridium found …

…possible that volcanics could be the source of the Iridium Spike. The dinosaurs actually died off gradually: not very suddenly as this theory suggests. While most of the scientific community heartily embraces the theory, the majority of paleontologists reject it. Many paleontologists are willing to believe that a meteor impact could have occurred, but don't accept that it caused the extinctions. It could have been the last straw that finished off an already dying breed.