Which spiders are considered dangerous to humans?

Several species of spiders are considered dangerous to humans due to their venomous bites. Among the most notorious are the following:

Black Widow: Black widows are found worldwide and are recognizable by their shiny black body with a red hourglass shape on the abdomen. Their venom contains neurotoxins that can cause severe pain, muscle cramps, nausea, and in rare cases, respiratory distress, particularly in children or the elderly.

Brown Recluse: Native to the United States, brown recluse spiders have a violin-shaped marking on their cephalothorax. Their venom can cause necrotic lesions, leading to tissue death around the bite site. Symptoms may include intense pain, fever, and in severe cases, systemic effects such as organ failure.

Funnel-Web Spider: Found in Australia, funnel-web spiders are large and robust with shiny, dark-colored bodies. Their venom contains potent neurotoxins that can cause serious neurological symptoms, including respiratory distress and death if left untreated.

Brazilian Wandering Spider: Native to South America, these spiders are highly venomous. Their bite can cause intense pain, sweating, and in severe cases, paralysis and death due to neurotoxic effects.

While these spiders are considered dangerous, it's important to note that fatalities from spider bites are rare, and prompt medical attention can effectively manage symptoms and prevent serious complications. Additionally, not all encounters with these spiders result in envenomation, as they typically only bite in self-defense. Visit https://www.flick.com.au/blog/the-most-dangerous-spiders-in-newcastle/ to know more.