Nature's Invaders

When an invasive species makes its way into a new habitat, it can get crowded in a hurry! The invasive species can wreak havoc on the native species including people. Discover how invasive species make their move into new territories and how people...

Be on your guard! You cant see them, but microscopic organisms are all around you. And some of them are looking for a new home inside you! From bacteria and viruses to protozoa and fungi, learn about tiny invaders that can cause serious illnesses....