Farther back in our planet’s history, volcanic eruptions, rapid climate change, and plummeting oxygen levels have caused at least four additional mass extinctions, with smaller pulses of biodiversity ...

Scientists have long treated mass extinctions as events locked deep in the fossil record. That framing now feels less distant ...

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 Jurassic Period is one of the three prehistoric geological periods of the Mesozoic Era. It spans from 145 million to 201 million years ago. This period was preceded by the Triassic Period and ...

It is estimated that throughout the Earth's 4.5 billion-year existence, over 99% of the species inhabiting it have gone extinct. Many of these species died due to mass extinction events. Life on Earth ...