Each day your body works to defend you against invaders.  Harmful bacteria, viruses, and fungi can enter your system and cause diseases.  In addition to relying on your immune system, it is helpful to avoid contact with germs by thoroughly washing your hands and keeping your environment clean.

How is it possible that some organisms have the ability to survive in some of the dirtiest places on earth?  What survival mechanisms do they have that differ from ours?

Scientists ground up the brains and other nerve tissues from two species of insects, the American cockroach and the desert locust.  Material extracted from More >