The world is a dangerous place for living things. Predators hunt their prey while microscopic germs spread disease. Even the heat or cold of the environment can be an enemy. Learn about the different defenses organisms use to protect themselves, from camouflage to immune systems.
Hide and Seek
Is that stick moving? Search out camouflaged geckos. You'll be amazed at how they hide in plain view!
Doctors and medicine are sometimes the best human defense against disease and injuries. Watch footage of real heart or lung surgery happening right on the operating table.
Defending Your Insides
Attack invading bacteria using the forces of the human immune system in this fun computer game.