Fortunately, fatalities are fairly rare; the spiders are nonaggressive and bite only in self-defense, such as when someone accidentally sits on them. The animals most at risk from the black widow' ...

The thought of black widow spiders is enough to send chills down one’s spine ... two out of 14 antibodies cross-neutralized between the whole venom of European and Southern black widows, suggesting ...

Although they resemble black widow spiders, they are not as harmful ... Introduced with bananas from the Canary Islands and Madeira, they are now well established in the southern counties and ...