http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0055387
I’d be happy with one of those types of studies. Not too much to ask considering this stuff is in pretty much all food found at the grocery store these days.
And, as it turns out, the BPA our government still tells us is safe. Might not be.
Go to Google Scholar Search and input "glyphosate," "mammalian," and "toxicity." You'll get about at 3,000 hits.