Have you ever wondered why you get sick? Germs are tiny organisms that make you feel sick and cause disease. Learn about the different types of bacteria, how they are spread, and discuss ways to keep from getting sick.
Test drive our Bird Finder tool based on our virtual bird aviary of the southwest. A great way to learn about birds in your own backyard. Image of Northern Cardinal above by Robert Shantz.
When you think of the arctic, you might picture mostly empty ice, but the Arctic ecosystem is home to many organisms. Much of this life in the arctic depends on tiny organisms called plankton which make up the base of the food web.
Does brain size relate to intelligence?
by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteers page to get the process started.