Sources on Wild Rats

Heya,

I have to do a micro-teach on Wednesday as part of my college course and I'm doing mine on rats and their natural habitat and lifestyle. Does anyone know of any good sources of info? I need something I can reference and so far google has only given me things that are unhelpful - pest control sites talking about where they can be found in the home and how they get in and kill your family at night or else really inaccurate crap.

Thanks

Don't know if these things help! Not read some, but think they may have nuggets in them?

http://www.nature.com/news/2004/040202/full/news040202-2.html

http://www.ratbehavior.org/WildAndDomesticRats.htm

http://www.rathelp.org/WildRats.html

http://www.ratbehavior.org/WildRats.htm

xx