The Five Deadliest Spiders in the World

Some spiders look scary and deadly, but most of them are actually not as poisonous as they look. The tarantula, for example, looks menacing but its bite isn’t deadly.

If you’re wondering about what the five deadliest, most poisonous spiders in the world are, here’s the list that you’re looking for.

  • Redback spider
  • Funnel web spider
  • Brazilian wandering spider
  • Brown recluse spider
  • Black widow spider

Redback Spider

The redback is a deadly spider found in Australia. The female redback spider has a predominantly black colored body with red and orange stripes on its back. The redback spider bite has a neurotoxic venom. Because it belongs to the widow spider family, the toxin may cause nausea, muscle weakening, vomiting and sweating to a person bitten.

The deadly redback spider can be found in Australia
The deadly redback spider can be found in Australia

Funnel Web Spider

The funnel web spider is also native to Australia but its male species are considered as real killers. When bitten by a funnel web spider, the victim can be hospitalized.

The funnel web spider is native to Sydney, Australia
The funnel web spider is native to Sydney, Australia

The male funnel web spiders are black or brown with a glossy texture. The funnel web spiders assume a standing stance up to their hind legs when attacking and simultaneous exposing their fangs. Just like the redback spider, a funnel web spider bite has neurotoxic venom which when transferred to a victim can cause muscle jerking, tears, salivation, and sweating.

An interesting fact is that a person can also shed tears just by looking at the funnel web spider. That’s how venomous this kind of spider is!

Brazilian Wandering spider

The Brazilian wandering spider is  predominant in the jungles of South America. It is one of the five deadliest spiders because its bite is particularly painful with the release of serotonin in the bloodstream of the bitten person. The naturally nervous Brazilian wandering spider is also aggressive by nature and its bite includes a toxic venom.

The Brazilian wandering spider is predominant in the jungles of South America
The Brazilian wandering spider is predominant in the jungles of South America

Brazilian wandering spiders are usually found wandering on the jungle floors at night and are not known as web makers. They hide in termite mounds during the day and dwell in fallen logs as well as in rocks. They also love to stay in banana plants during daytime.

Brown Recluse Spider

The brown recluse spider is a small spider, but it is considered as one of the five deadliest spiders in the world. The back of the head of the brown recluse spider assumes the shape of a violin. The venom of the brown recluse spider causes the afflicted flesh of the victim to rot and fall away. However, the recluse spider bite is not painful unlike that of the Brazilian wandering spider.

READ: Brown recluse spider-bite death of 5-year-old is rare event, but the spiders flourish in Alabama

Black Widow Spider

The last of the 5 deadliest spider bites belongs to the Latrodectus family and is considered the deadliest of the five — the black widow spider!

The glossy black spiders are predominantly found in North America and have a neurotoxin venom that when released on a victim causes unbearable pain. The two fangs of the black widow spider form clear fang marks after biting.

The spider bite symptoms of the black widow bite includes abdominal and back pain, abdominal muscle cramps, restlessness, difficulty in breathing, high blood pressure, and, in some cases, death.

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