Different spiders make different webs

Image:Scott Camazine

Black widow spiders are at the top of the list of things to avoid in San Diego because of their poisonous bite. Identifying what types of webs spiders weave helps you identify — and avoid — certain types of spiders.

Why do some spiders weave spiral orbs while others weave, tangled or tunneled webs?

Resources:

Sciencing:How to identify spiders by their web pattern