While they are not dangerous in the typical sense of the word, as they play a critical role in the environment and some cultural diets, they have the potential to cause major damage to crops and infrastructure.
Lice are wingless scavengers that feed on the skin of the host’s body or on other secretions such as blood. On average, humans hosts have about fifteen different species of lice on their heads. Although, like termites, they are not always dangerous to humans, they do have the ability to transmit diseases.
Every year, the Deer Tick infects thousands of people with Lyme Disease. Lyme Disease begins with a rash around the bite, resembling a bull’s eye. Early symptoms include head ache and fever. As time passes, the victim will suffer stiff joints and heart problems. Few victims die from the disease, but their suffering can go on for years.
Army ants are known for their aggression, especially as predators. Unlike other species of ants, army ants do not construct their own permanent nests. Instead, they build colonies that move from one place to another. These predators incessantly move during the day, preying upon insects and other small vertebrates. In fact, the entire colony put together can consume up to 500,000 prey insects and animals each day.
Although most yellow jackets are little more than a pest, certain species, like the German yellow jacket of North America, are bold and aggressive. If provoked, they can sting repeatedly and painfully. They will even mark their aggressors and pursue them if provoked.