A discovery in northern Germany has revealed one of the world’s oldest and best-preserved spider fossils. Dating back more than 310 million years, the fossilised arachnid, named Arthrolycosa ...

A fossilized spider unearthed in the grasslands of eastern Australia has turned out to be the largest of its kind ever discovered on the continent—and possibly one of the largest fossil spiders found ...

From horseshoe crabs to crocodiles, some of these creatures have looked about the same for hundreds of millions of years.