Summer is here and millions of children and adults are taking to the outdoors to play and have a good time. But be careful, your fun afternoon of exploring new places might just get you on the wrong side of a wasp, hornet or bee hive.

Wasps, bees and hornets build hives that can contain thousands of insects in such places as over hangs, old buildings, abandoned equipment or just about anywhere they feel safe and protected from predators. While most of these insects won't attack humans for fun, they will attack enmasse in a swarm if they feel threatened.

Solitary WaspThese are usually known as mud daubers or dirt daubers because of their tendency to build nests out of mud. The nests are several cylinders, or tubes, around 1' long. Each tube, or cell, contains several paralyzed spiders to feed the growing larva.