Why Do We Call Them Bark Spiders?

Spiders have unique and intriguing names, and the bark spider is no exception. This species, known for its impressive silk production and web-building abilities, is called the bark spider for a specific reason. In this article, we will explore the origins of this spider’s name and what makes it such a fascinating species.

An Overview of Bark Spiders

Before delving into why these spiders are called bark spiders, let’s take a brief look at what they are. The bark spider (scientific name Caerostris darwini) is an orb-weaving spider native to the forests of Madagascar. These spiders are known for their web-building abilities, with some individuals capable of producing silk that is up to ten times stronger than Kevlar.

Bark spiders build their webs primarily on the trunks of trees, and these webs can stretch up to 25 meters in length. Their webs are strong and sticky, which helps capture prey such as insects and small vertebrates.

The Origin of the Name Bark Spider

The name “bark spider” comes from the spider’s habitat. As previously mentioned, bark spiders build their webs on trees, specifically on tree bark. The bark provides an ideal surface for the spider to build its web on since it is rough and textured, offering plenty of anchor points for the spider’s silk. Furthermore, it offers protection and camouflage, making it less visible to predators. Given that the bark spider’s choice of habitat is so closely tied to the bark of trees, the name “bark spider” is a straightforward and descriptive name that accurately reflects the spider’s niche in its ecosystem.

The Fascinating Biology of Bark Spiders

While the name bark spider may seem simple, the biology of this species is anything but. Bark spiders have incredible silk production abilities, producing strong and elastic silk that can stretch across large distances. Their silk is so strong because of their diet – insects they feed on are rich in protein, allowing the spider to produce silk that is high in a specific amino acid called proline. The proline-rich silk gives bark spider silk its incredible strength and elasticity.

Scientists and engineers are currently studying the composition of bark spider silk to develop new materials that are stronger and more flexible than current synthetic options.

Conclusion

In conclusion, the name “bark spider” accurately reflects the spider’s habitat and niche in its ecosystem. While the name may seem straightforward, the biology of these spiders is truly fascinating. Their unique web-building and silk production abilities are of great interest to scientists and engineers who are exploring revolutionary new materials. Bark spiders are just one example of the amazing species that inhabit our world.