But the Permian detectives are faced with a host ... years—quicker than the click of a camera shutter on a geologic scale of time. Suspects must be capable of killing with staggering swiftness ...

Fossils from southern China provide evidence for a mass extinction during middle Permian time, 260 million years ... The researchers contend that the enormous scale of volcanism associated with ...

Insights from analysts' 12-month price targets are revealed, presenting an average target of $20.67, a high estimate of ...