Add Yahoo as a preferred source to see more of our stories on Google. close up of a black sea spider's abdomen which has attached gelatinous egg sacs filled with tiny, shiny black eggs Three ...

Who were the earliest ancestors of scorpions, spiders and horseshoe crabs? A Ph.D. student from the University of Lausanne (Switzerland), with the support of a CNRS researcher, has identified a fossil ...

A 500-million-year-old fossil could rewrite the history of arachnids. This discovery challenges the terrestrial origins of spiders and their relatives. Arachnids, including spiders and scorpions, are ...

Creatures referred to by researchers as "methane-powered sea spiders" manage to live on the ocean floor in a way that has not been seen before. Three previously undiscovered species of sea spiders, ...

One of Australia's biggest and deadliest spiders is actually three different species, researchers discover — and one of these behemoth arachnids is even bigger than the rest. Sydney funnel-web spiders ...