Vision shapes how many animals find food, avoid danger and navigate their world. In animals with two eyes, eye placement is ...

It's not easy to look at a sea spider and see an animal so representative of its kind that it may help scientists sort out the evolution of almost everything with eight legs. But that's the potential ...

How did spiders get their fangs? Spiders are one of the most successful groups, surviving in pretty much every habitat. One ...

Researchers sequenced the genome of a sea spider, revealing it lacks whole-genome duplication seen in related arachnids. This positions sea spiders near the base of the chelicerate family tree. The ...

Spiders’ ability to spin webs may be one consequence of a really big genetic mistake. A close look at the genetics and development of spinnerets — spiders’ silk-making organs — reveals that an early ...

A new study challenges traditional views on arachnid evolution, suggesting that the transition from water to land occurred multiple times rather than in a single event. The research also highlights ...

Spider webs present an intriguing challenge to evolutionary biologists. These finely honed death traps come in many forms, from the trampoline-like construction of the sheet web spider, to the ...