Spiders are some of the most diverse creatures on Earth. While they can be frightening, most of them are harmless and ...

In more severe cases, the bites can cause necrosis as the skin's tissues, nerves, and blood vessels die. Here's how to avoid disturbing a brown recluse spider out in the wild. Read more ...

Brown recluse venom only acts locally at the site of the bite, and generally leads to severe skin issues. The venom of a black widow spider, however, is a neurotoxin, the CDC says. Therefore ...