Black Widow Spiders

Paper Summary:

Examination of the widow spiders as most dangerous to humans in North America. Spiders as arthopods. Scientific analysis of the species. Webs of black widow. Three types of black widow spiders in the U.S. Description of the Southern, Western and Northern female. The European black widow. Adult male black widow spiders. Mating process. Spider bites.

From the Paper:

"Spiders are arachnids, a group of arthropods which includes scorpions, harvestmen, mites, and ticks (Akre, Catts and Antonelli, 2001). Spiders have jointed legs and a hard external or outer skeleton. They have four pairs of legs, and the body is divided into two sections, the cephalothorax and the abdomen, whereas insects have six legs and their bodies are divided into three sections, head, thorax and abdomen. Spiders have no wings or antennae, but they do have large, sharply pointed jaws which are their fangs (chelicerae).
All spiders are predators, and they feed on a variety of insects and other soft-bodied invertebrate animals (Akre, Catts and Antonelli, 2001). Spiders attack and subdue their prey by biting them with their fangs and injecting them with poison. All spiders spin silk, but not all of them use it to spin webs. Most ..."

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