Anatomy of a spider Anatomy of a spider Spiders are fascinating creatures that are often feared. The truth is that most spiders prefer to avoid humans. This is different from most insects which have a separate head, thorax, and abdomen. Most spiders have eight eyes and eight legs. The fangs which deliver the spider s venomous bite are called chelicerae.
Spiders apprehend their prey in a variety of ways.
Some spiders build trapdoors under which they lie in wait for unsuspecting prey. Other spiders actively hunt their prey, such as the wolf spider. Still other spiders use the more commonly seen method of orb webs which entrap the victim in sticky silk. Spiders reproduce sexually. Males secrete seminal fluid onto a sperm web, and then pick up the fluid and insert it into the female spider s genital pore.