Spiders!

They’re creepy, they’re crawly, they have eight legs and they send people running whenever they enter a room. No, they’re not Pittsburgh Steelers fans. They’re spiders. Did you know there are over 50,000 species of spiders in the world, and more are being discovered every day! They are awesome animals that play a very important role in our environment. What do you say we play a CMNH style game of Myth Busters all about spiders?

Myth #1. Every spider is venomous and can hurt us.
True and False - While every spider is venomous only a very small percentage of spiders are dangerous to humans, and of our over 500 different spiders found in Ohio only 2 can be harmful to humans and those are rare species and easily identifiable if you take the time to look before you squash. They are the black widow and the brown recluse.

Myth #2. Spiders are insects.
False - Spiders are not insects. Insects belong to a totally different class of animals and there are some easy ways to tell them apart. Insects have 3 main body parts: the head, the thorax and the abdomen. Spiders have 2 body parts: they have the abdomen like insects but they have combined their head and thorax to form the cephalothorax. Spiders have 8 legs and insects have 6. Insects have antennae and spiders do not.

Myth #3. Spider silk is stronger than steel.
True - Spiders can produce many types of silk, some used for webs, some for non-sticky support lines, some for trap door webs, and even some webs used for parachutes that allow them to float on the wind, and each species can specialize on making different types of silk. Studies have shown that certain types of spider silk, especially silk from the orb spider family can be comparable and even stronger then steel at the same diameter.

Myth #4. Spiders are dangerous to humans because they are dirty and pass on disease.
False - In fact, spiders play an important role in keeping infectious disease cases down in human populations around the world. Spiders are among the most prolific predators of mosquitoes and flies. These are two of the biggest vectors for animal to human related diseases in the world. The more spiders we have the less mosquitoes and flies we have which means we have a better chance of keeping infectious diseases like malaria and West Nile from spreading through our human populations.

If you would like to satisfy your curiosity for arachnids stop down at the Cleveland Museum of Natural History. You never know when our very own Chilean rose tarantula Anansi will make a guest appearance at one of our live animal shows. Get an up close look at all the cool features that make spiders spiders. Maybe after meeting Anansi you will think twice the next time you see a spider and instead of smashing it remember, they are more helpful to us alive and catching insects than they are at the bottom of your shoe.

Joe Dell'Anno
Perkins Wildlife Center Co-Manger