Brazilian Wandering Spider Average Weight: 0.05 ounces Sometimes called a Banana spider, the Brazilian wandering spider is one of the biggest spiders in the world, with a measurable weight.

The exhibit, Spiders Around the World, opened Sunday and is only available through the end of October. It showcases more than 20 different species of tarantulas from across the globe.

The Goliath bird eater is often called the world's biggest spider. It can be 11in across from leg tip to leg tip. That's as big as the long side of a standard sheet of paper.