Most of the scientific papers deal with South American wildlife. You can read and download the full versions of any of the papers. A lot of them are species distribution lists within certain regions or range extensions. There are quite a few dealing with amphibians.
Here is one of the really cool papers found on the site. It takes a long time to load so be patient. Bilsa Biological Station
It is a herpetofauna species list for the Bilsa Biological Station in Ecuador.
A pretty cool read...for those people who like to read scientific papers like I do.