Top 7 Most Poisonous Animals - Page 2 of 9

The Brazilian Wandering Spider

The Brazilian wandering spider is one of the most dangerous spider species in the world. In fact, in 2007, the Guinness Book of World Records rated the wandering spider as the most poisonous animal in the world. They are commonly found in the Amazon rainforest region. The spider has a unique and bright yellow body color.

This spider is very poisonous because it contains a very high concentration of serotonin which can be very painful inside the body of humans or other animals. In fact, the neurotoxins from this spider can cause paralysis and even death within 5 minutes of an attack.