Conventional wisdom held that as worms and other animals burrowed in the sediment along the floors ... with a steep rise occurring during the Ordovician period. Back then, the world would have looked ...

The world and its ecosystems have been around for a long time — so long that the first mass extinction occurred “just shy” of ...

The world and its ecosystems have been around for a long time — so long that the first mass extinction occurred “just shy” of ...

“This mass extinction event in the Ordovician, this happened hundreds ... experiment” to test if deeper or shallower water animals are affected more and if there’s a difference in timing.

And the animals that evolved during this period had hard body parts ... Earth saw its first mass extinction event. This was the Ordovician-Silurian extinction. And a majority of the life that had been ...

Ancient artifacts can tell the story of humanity and how we evolved technologically, spiritually, and emotionally. However, sometimes archaeologists find ...

Let’s start with a clear definition of what constitutes a mass extinction. Unlike regular extinctions, which occur at a steady background rate — about 10% of species lost every million years — mass ...

In a discovery that challenges our understanding of Earth's ancient history, researchers have found evidence suggesting that ...

In the past 500 million years on Earth, there have been five mass extinctions. Here are a few incredible species that managed ...

This era of intense bombardment, known as the Ordovician impact spike, may have resulted from meteorites falling from the ring rather than flying in from space, which would explain the strange ...

What do animals know about death? It's a question Charles Darwin himself pondered. "Who can say what cows feel, when they surround and stare intently on a dying or dead companion?" the biologist ...