Wolf spiders carry their egg sacs attached to their abdomen, ensuring their babies stay warm and protected wherever they go. Widow spiders — like black widows — hide their egg sacs in dark ...

These spiders spin large webs in which females suspend a cocoon with hundreds of eggs. Spiderlings disperse soon after they leave their eggs, but the web remains. Black widow spiders also use ...

The black widow spider can be found on every continent except ... But it seldom bites unless threatened or protecting its eggs.

For the most part, black widow spiders are regarded as aggressive, especially if they have eggs or a nest nearby, while ...