The spiderlings are duplicates of the adults and grow by a procession of exfoliation. Surprisingly, spiders can live up to 2 years. Spiders create and use silk. Located at the pinnacle of the abdomen is a collection of glands from which silk is produced as a liquid that solidifies to air exposure. The silk is used to catch prey, build cover, to assemble the web sac, and as leverage.
Spiders can be advantageous to man in that they help to control the insect population.
Spiders are non-aggressive and would rather flee from man. They are shy and would rather hide from human beings. The normal house spiders are gray, pale yellow or tan and are small, no more than inch in circumference. If you notice a spider that is larger, inch or more with distinct patterns or brightly colored, and can move quickly and jump, then these are the outdoor species. It is a good idea any time, to maintain conscientious cleaning practice.