Ancient sea organisms survived until a sudden extinction 550 million years ago, revealing what may be the first major mass extinction.

Scientists say a Chinese fossil site offers the first major look at life after the Sinsk mass extinction.

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

Earth has experienced five documented mass extinctions to date. With the sixth extinction around the corner, scientists are looking to the past to try and understand how life continues on after one of ...

Researchers studying the soft-bodied Ediacaran biotas of the world generally accept that there are three distinct assemblages. The 575–560-million-year-old (Ma) Avalon Assemblage is best known from ...

Add Yahoo as a preferred source to see more of our stories on Google. Sharks might be the all time bullet-dodging champions. They’ve been around for about 450 million years, longer than trees, longer ...

In nature, extinction doesn’t arrive with a press release. It often begins quietly, with a subtle shift in the environment. A new predator enters the ecosystem. A virus mutates. A faster, leaner ...

A pair of Sacabambaspis fish, around 35 cm in length, which had distinct, forward-facing eyes and an armored head. No fossils of animals like Sacabambaspis from after the Late Ordovician Mass ...

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 ...

The Silurian Period is characterised by a dynamic interplay between environmental stressors and biotic turnover, with extinction events and carbon isotope excursions (CIEs) representing pivotal ...