Audio Trail Sites

Well, most of theses sites that I went to cost money.... they are ROYALTY free sites, but it still costs to use them.
http://incompetech.com/m/c/royalty-free/ <~~~~ this site asks for a donation and then you can get music.... it has sound effects and different things on it.
Jamendo http://www.jamendo.com/en/ seemed like an all right site. You must be a member, but it looks as though you can actually download for free.
Audio-CC Wiki http://wiki.creativecommons.org/Audio has a LOT of websites that you can go through and find audio files. There are many, many sites available here, and if you have the site to go through them all, then you might find some good stuff.

Mammals

Mammals
Originally uploaded by Arenamontanus

I have no idea how this picture relates to mammals.... It is pretty though :) Oohhh.... the description says that this is a treemap of mammals. Sounds very scientific- a little over my first graders' heads!