Spiders have two body regions cephalothorax and abdomen. Spiders are different from insects, spiders have eight legs and insect only have six legs. Spiders do not have wings or antennae. Spiders are carnivorous. The spiders used silk to built webs and other types of snares, egg cases, drag lines, and refuges.
Spiders eat insects and some pest species.
The Brown Recluse, Sac, Black Widow, Red-legged Widow and the Varied Widow are dangerous. Four of the Widow females are known to bite humans. The bites of these six spiders often cause mild reactions. Usually a person irritates a spider several times before it bites.