Dangerous Catch Dirty Secrets Additional Episodes
TV Schedules About the Project For Educators Feedback border
National Geographic's Strange Days on Planet Earth
Get Involved
Little changes... with big results. border
border Why Should I Care? border border

5 Reasons Why

Why Others Care
border What Do Experts Say? border border

From the Episode

Related Stories

border How Do I Measure Up? border border

Tools You Can Use

Interactive House
border What Can I Do? border border

Get Out There

Idea Exchange

Please note that links marked with Off-site Link are off-site links and will open in a new browser window.

PBS's Terms of Use.

5 Reasons Why You Should Care

Brown Rat
4 border
Norway rat
border border

Unhealthy Conditions
Some invasive species really know how to stir things up. The Norway rat, which is actually a rat from Asia, first arrived in the United States around 1776. Just as colonists were attempting to build our nation, the Norway rat was starting its own colonization effort, which continues to this day. Norway rats can damage your property, spread disease, ruin your food and create nasty sanitation issues.

« Previous | 1 | 2 | 3 | 4 | 5 | Next »

Site Credits   |   Privacy Policy
© Copyright National Geographic Television & Film. All rights reserved.