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 ...

A wolf spider stays low to the ground. The timid venomous creatures are common in California, especially during warm months. Getty Images As sweltering temperatures continue to bake California, the ...

When a spider bites, it typically leaves two puncture marks on the skin, a hallmark of arachnid encounters. In the United States, there are over 3,500 species of spiders, but only a handful are known ...

Rattlesnakes and black widows are venomous and live in Redding, California. These animals usually only bite in self-defense or to protect their young. If bitten, seek immediate medical attention.