The Guam Customs and Quarantine Agency said live spiders, including one species later identified as a venomous black widow ...

Selenium is highly elevated in Appalachian streams and stream organisms that receive alkaline mine drainage from mountaintop removal coal mining compared to unimpacted streams in the region. Adult ...

The Joro spider (Trichonephila clavata) is spinning its three-dimensional webs across porches, power lines, gardens, and vegetable patches throughout the Southeastern United States. Joro spiders, an ...

California has its share of spiders, but which ones are dangerous? Here are 10 common brown spiders in California.