The Earth has gone through many major events over the course of hundreds of millions of years. Some of the most significant are the six mass extinction events that have occurred. These are times when ...

Describing Anomalocaris to someone who is unfamiliar with the fossil species is a difficult task. No living creature is quite like it. Sometimes this 505 million year old invertebrate has been called ...

Paleontologists have discovered a rich array of exceptionally preserved fossils of marine animals that lived between 480 million and 472 million years ago, during the early part of a period known as ...

From the beginning of the Ordovician, marine life began its great radiation, which was characterized by the rapid appearance of new orders, families, and genera, together with the replacement of ...

Over half a billion years ago, during the Cambrian geological period, life on Earth started to get a lot more interesting. Thanks to the rise in free oxygen generated mostly by photosynthesizing algae ...

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An artist's interpretation of Aegirocassis benmoulai, a remarkably well-preserved 480-million-year-old arthropod known as an anomalocaridid. Morocco's vast, rocky deserts were once covered with oceans ...

A forgotten fossil discovered in a museum drawer after more than 60 years is challenging assumptions about animal evolution.

It looks AI-generated, but the truth is much older. We dig into the fossil record to uncover the story of Sacabambaspis, a ...

A discovery of a huge number of soft-bodied marine animal fossils is giving these critters a fair shake in the fossil record. Paleontologists found more than 1,500 soft-bodied marine animal fossils, ...