Arachnids Spiders have been around for about 400 million years There are more than 35,000 kinds of spiders Some people think that spiders are insects They are wrong Spiders are arachnids Arachnids are small animals with eight legs and two body parts 4
Black widow spiders are in the group of spiders called Latrodectus 5
6 A black widow’s silk is sticky
Black widow is a common name for some kinds of widow spiders Widow spiders are cobweb weavers Cobweb weavers build a tangled cobweb from their silk The black widow’s silk is strong It is stronger than most other arachnids silk 7
