Over the past week, the media have been inundated with news of the "de-extinction" of the dire wolf (Aenocyon dirus)—a species that went extinct about 13,000 years ago. The passenger pigeon. The ...

More than 99% of all species that have ever lived are now extinct - and today, many scientists believe we are driving a sixth mass extinction. From the baiji dolphin of China’s Yangtze River to the ...