“Flea bites often result in small, red bumps, with a ‘halo’ around the bite center,” says Jim Fredericks, Ph.D., a ...

Lyme disease, a disease transmitted when deer ticks feed on infected animals like deer and rodents, and then bite humans, impacts nearly half a million individuals in the U.S. annually.

Lyme disease might be the most common tick-borne illness, but there are several other diseases you should know about this summer.

The Florida green iguana is on that list. Some people refer to iguanas as "mini dragons." They don't breathe fire, but they will bite you using their saw-like teeth. The teeth of green iguanas are ...

NBC News medical contributor Dr. John Torres joins TODAY to share everything you need to know to protect yourself from bugs, including ways you can eliminate them on your property, medications you can ...

When it comes to summertime pests, mosquitoes are public enemy number one. But why do mosquitoes bite us? Why do their bites ...

Risky human behavior, not aggression by alligators, is the leading cause of alligator bites. A recent study is the first to develop a ranking system that categorizes human actions immediately ...

In a residential backyard in Maine, Project ITCH researchers from the University of Massachusetts Amherst stumbled upon a ...