Which Arachnids are the Most Dangerous Spiders in the World?

Spiders are known for regulating insect populations whether at home or in the wild. In particular, a number of spider species are known for their contribute to agriculture, by killing crop-damaging insects and other pests.

Without them, scientists claim the world's food supply could be at risk. In spite of their importance, evidence show arachnids are instilling fear to some people, especially arachnophobes.

Aside from their ecological importance, spiders can also pose danger to humans, ranging from a mere nuisance to moderate disruption in mundane lives. However, there are instances where spider attacks can be life-threatening. It is reportedly for this reason that a small percentage of the world's population is arachnophobia, a specific phobia due to an irrational fear of spiders, as well as other arachnids.

This is where the world's most dangerous spiders in the world come into play. While there is also a relatively small number human fatalities from spider attacks worldwide, deadly spiders can still be found in the wild and even in residential areas. This where they can pose more danger due to their proximity with humans. Wildlife experts explain why there is a weak connection between the spiders and human deaths.

Research shows that a spider's venom is the main basis on whether or not it could kill a human or even other animals. While size and species also matter, different spiders have their own type of toxic substances. These explains the notion that spider attacks do not always equate to death, with fewer than three people in the United States reportedly dying from spider bites each year.

World's Most Dangerous Spiders

(Photo : Photo by OSWALDO RIVAS/AFP via Getty Images)

Out of all the roughly 50,000 known spider species, only less than 1% have a venom that is toxic enough to cause health complications in humans, according to Rick Vetter, a spider expert and retired entomologist, who told Newsweek.

One of the prevailing reasons for the low statistical probability, is the capability of very few spiders to penetrate human skins.

Regardless of their morphological features below are some of the world's most dangerous spiders with the first being to be the record holder.

Also Read: 7 Surprising Facts You Didn't Know About Sea Spiders

Who Holds the Title?

The funnel web spider is widely considered as the most dangerous arachnid. This Australian spider contains a venom that consists of 40 different toxic proteins, according to USA Today.

The US media outlet also debunks the long-held "myth" that daddy long legs is the most dangerous spider in the world. While they are venomous, they only have anatomically-specific glands for venom production.

In fact, "daddy long legs" is only an umbrella term used to refer to pholcid house spiders, harvestmen, and crane flies (which are not arachnids).

While the topic is still debatable, CBS News in 2016 compiled the top 10 deadliest spiders:

•  Sydney funnel-web spider
•  Redback spider
•  Chilean recluse spider
•  Brazilian wandering spider
•  Sicarius spiders
•  Brown recluse spiders
•  Black widow spiders
•  Hairy mystery spiders
•  Brown widow spiders
•  Katipo spiders

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