A cat-faced spider is a common orb-weaver spider, found in the western part of the United States and Canada. Their legs are specialized for spinning orb webs, which are shaped like spiral wheels. They are built by the females. When the web is disturbed, the prey is quickly bitten, then wrapped in silk for later consumption. If the prey is also venomous, such as a wasp, the spider will wrap it in silk first, then bite. The venomous toxin paralyzes their prey, however, this venom is harmless to humans. This cat-faced spider was found on a web attached to my house.