Parasites that torture pests: Spider

Spiders have an ominous, but often undeserved reputation.  Though most spiders are venomous and considered predators, of the thousands of species found all over the world, but a select few are actually considered a health threat.  In fact, spiders are actually helpful in controlling other pests in the home or garden since they feed on other insects and spiders.  They generally bite and inject venom into their prey.  Spiders, however, rarely bite humans.