
Has the Earth Ever Been This Hot Before?
Was the planet ever as hot as it is today, when every month the globe seems to be breaking one high-temperature record after another?
Find out everything there is to know about extinction and stay updated on the latest extinction news with the comprehensive articles, interactive features and pictures at LiveScience. Learn more about amazing discoveries scientists are making as they uncover the causes and other details of mass extinctions throughout history.
Related Topics: Evolution, Climate Change, DNA and Genes, Fossils