Yo can find a lot of static animals at http://www-c.inria.fr/Eric.Saltel/download/ANIMALS/index0.php

This is a mega index that references other sites. Some sites like 3Dcafe no longer work. Pictures and some links don't work in internet explorer but everything works in firefox. There is also a text search so you don't have to browse the 19 pages of images to find what you need.

I've gotten sheep pigs cows and even a giraffe from this site.

P.S. If you bought poser you should visit http://www.contentparadise.com/ . They give one free mesh away every week if you register and give them your poser serial or other proof. They have a weasel now. In the past they had some great dinosaurs, birds like crows, flimingos, etc. You never know what you might want until suddenly you want it so I grab every one.