Most exposures to black widow spider venom are accidental, but in a rare medical case, the exposure was intentional.

The first occurrence of a dangerous spider known as the Black Widow has been confirmed in Slovakia. The adult female arrived in Slovakia from California in a shipment of machine parts goods. She also ...

Immature and male brown widow spiders don't bite at all. Brown widows are much less aggressive than black widows — they prefer to play dead rather than bite and they don't defend their webs.

The brown widow spider (Latrodectus geometricus) is a lesser-known relative of the infamous black widow. The first brown widow spider was discovered in Los Angeles in early 2000. A member of the ...

Brown recluse bites also may develop an area of dead skin tissue called an eschar that eventually sloughs off and leaves an ulcer behind, Levoska says. However, bites from black widow spiders don ...