<p><b>Copyright information:</b></p><p>Taken from "Pesticide Mixtures, Endocrine Disruption, and Amphibian Declines: Are We Underestimating the Impact?"</p><p></p><p>Environmental Health Perspectives 2006;114(S-1):40-50.</p><p>Published online 24 Jan 2006</p><p>PMCID:PMC1874187.</p><p>This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original DOI</p> Gonads are not completely differentiated. Note the intact cortex (C) and medulla (M) separated by blue connective tissue (arrows in ). Also note medullary regression and ovarian vesicle (OV) but absence of significant oogenesis in the female (). A single oocyte (arrow) is noted in the female. Scale bar = 125 μm
