These warm summer days can offer a lot of outdoor fun -- but can come with some pesky trouble. People dealing with spider or mosquito bites often find it hard to tell the difference. And it's ...

UC Davis scientists uncovered Aptostichus ramirezae, a new trapdoor spider species living under California’s dunes. Genetic analysis revealed it was distinct from its close relative, Aptostichus simus ...

Wolf spiders have a reputation for being intimidating, and it’s easy to see why. They’re fast, hairy, and large enough to make anyone jump when one scurries across the floor. In Australia and the ...