HOW MANY SPECIES OF SPIDERS PRODUCE VENOM?

The Brown Recluse (Loxosceles species) spider is found in America and and produces venom to kill prey. Its bite can result in vomiting, fever and shivering.
Brown recluse spider
Funnel-web spiders (Hadronyche and Atrax species) are found in Australia. Their venom causes breathing problems that can lead to a coma within 10-15 minutes after the bite.
Funnel web spider

Except for one family, all species produce venom to immobilize or kill their prey. A pair of glands is responsible for producing poison, secreted through a small opening at the tip of the fang.

The most dangerous spiders in the world include:

  • Funnel-web spiders (Hadronyche and Atrax species) found in Australia, whose venom causes breathing problems that can lead to a coma within 10-15 minutes after the bite;
  • Brown Recluse (Loxosceles species) spider, usually found in dark corners in America, whose venom can result in vomiting, fever, and shivers;
  • Black widow spider that thrives in hot climates, whose bite may cause death.
The Black widow spider thrives in hot climates. Its bite may cause death.
Black widow spider
Other dangerous spiders include Banana spiders (Phoneutria species) found in South America, whose venom is dangerous if injected in sufficient amounts
Banana spider (phoneutria species)

Other dangerous spiders include Banana spiders (Phoneutria species) found in South America, whose venom is hazardous if injected in sufficient amounts; and the Redback spiders and their relations (Latrodectus species) found in Australia, whose bite is dangerous to the very young and old people. Tarantula spiders are large and frighten many people because of their hairy bodies, but they are harmless to humans.

Red back spiders and their relations (Latrodectus species) are found in Australia. Their bite is dangerous to the very young and old people.
Red backed spider
Tarantula spiders are large and frighten many people because of their hairly bodies, but they are harmless to humans.
Tarantula

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