One study showed that a way caterpillars stopped the spread of diseases was to eat the infected.
Ancient poop reveals that Romans suffered from intestinal parasites, despite their sophisticated sanitation system.
Researchers at the Home Biome Project trace bacterial samples back to specific houses.
Some people believe that a dog's mouth is cleaner than a human's. While this may be true, which mouth is more dangerous to people?
A new study suggests it may not be the worst thing in the world to clean your baby's pacifier with your own saliva.
It's not a flattering likeness, but rats and humans actually have a lot in common, including physiology.
What do the Ebola virus, anthrax, and the avian flu have in common?
Unlike the mice and common rats used to test drugs and chemicals in labs, naked mole rats are hard to infect with disease.
Are there health risks associated with sleeping with your pet?
It's awful to get sick when visiting relatives or friends overseas. Make sure to read up on health risks before you travel!