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They bite when they feel like they are in danger and when they hunt their prey.
The males are not known to bite humans. They do have venom, but are not able to inject enough to harm a human anyway.
a black widow usually finds somewhere dark after they bite someone this way so the victim cant find them before black widows bite they like to hide and not eat. i am a scientist for San Francisco California my neighbor was bit 2 weeks ago he had an allergic reaction. after he was bit we found the spider hiding under his dresser.
Like all spiders the black widow has smell sensors on its legs.
Only black widows have hourglasses on their backs... You should probably be careful
it is a black widow. it is all black becausse only female black widows have the red mark on their back. this means that is a male black widow.
It sounds like the famous black widow spider. they can be poisonous but if you avoid them at all costs they wont bother you, they only bite if you poke at them and go near and annoy them !!
AnswerIf it is predominately black and has the red hourglass on the abdomen, it is a black widow. It is my understanding that the stripes denote either a male or a younger female. I have also seen black widows with red dots on the back. The black widow with spots on its back usually has thirteen and it is called a European Black Widow.
It's my understanding that the color of the markings on a black widow are by and large red, but can appear in yellow, orange, and white. I would regard that spider as a black widow for safety's sake.
Yes, they are poisonous. Their bite is painful and is toxic. Its poison can cause flu-like symptoms and, in severe cases, liver damage - especially in young children or the elderly. Luckily, they are very sensitive to insecticides and, therefore, easy to control.
Black widow mostly dress up like other people to give the others more time.
same as alive