The spider is an animal that many people used for various scientific and research objects. In addition, spider silk merupankan one amazing product produced by this animal. But behind it all spiders is also the most poisonous animal on and off in the world.
Here are a few kinds of spiders the most poisonous in the world:
The Black Widow spider
The spider is probably the most deadly. Shiny black spider is found in North America. Neurotoxic venom when they bite is painless, with two fang marks a clear afterwards. Symptoms of a bite include abdominal and back pain, abdominal muscle cramps, respiratory failure, high blood pressure, anxiety, and if bitten too long, will cause death.
