The black widow spider can be found on every continent except Antarctica. Its venom is toxic and painful, leaving victims to feel the effects long after the bite. Following is a transcript of the ...

Black widows are notorious spiders identified ... This spider's bite is much feared because its venom is reported to be 15 times stronger than a rattlesnake's. In humans, bites produce muscle ...

The structure of a tetrameric form of the spider neurotoxin, α-latrotoxin, has been determined by single particle cryo-electron microscopy. It reveals a pore complex with extended arms that could ...

Eminent for its colour-changing capability, cooperative parenting, and social organization, the Arizona black rattlesnake is a standout among rattlesnakes. Though its venom is deadly to humans ...