Most spiders are solitary, aggressive, and quick to cannibalize their own kind. One species from Madagascar breaks every rule ...

Alaska has no established native populations of medically significant spiders, making it one of the safest U.S. states for arachnophobes. Wolf spiders are Alaska's most commonly encountered large ...

Each year, thousands of Americans experience spider bites, yet only a small fraction require medical intervention. Understanding which encounters demand immediate attention and which can be treated at ...

A study from McMaster University in Ontario, Canada, published Monday in Nature Ecology and Evolution showed that Anelosimus studiosus spiders, in particular, have become more aggressive in the wake ...

Technically, all spiders are at least slightly venomous. However, the vast majority of species in the United States are not considered medically significant. Most cases of spider bites that require ...