The Cretaceous Era—roughly 145 to 66 million years ago—was the last hurrah of the dinosaurs. A massive asteroid impact brought them to a violent end, but there’s more to the story. The Cretaceous ...

For eons, Earth has experienced dramatic shifts, punctuated by five catastrophic mass extinction events that wiped out vast swathes of life. Now, a growing chorus of scientists is sounding the alarm: ...

couple of Brachiosaurus altithorax and a flock of Pterosaurs in a scenic Late Jurassic landscape© dottedhippo/iStock via Getty Images The Jurassic Period is one of the three prehistoric geological ...

CNN — The sixth mass extinction is not a worry for the future. It's happening now, much faster than previously expected, and it's entirely our fault, according to a study published Monday. Humans have ...

A new report from researchers at Berkeley, Stanford, and Princeton suggests that humanity has kicked off the sixth extinction level event in our planet's history, even after using extremely ...

For most of human history, extinction has been understood as an immutable fact of nature—a one-way door that, once closed, could never be reopened. Species disappear, their genetic innovations vanish ...

The aerial photograph on the left shows the Transamazonian highway just after completion. The satellite photograph on the right shows a much larger area, revealing the wake of destruction fanning out ...

Humans have been shaping their environment since time immemorial. From cities to farms to highways, our impact has grown so large that we've pushed planetary boundaries, fueling concerns about climate ...