A few nice animal research images I found:
Animal Development
Image by Wolfram Burner
This image show several stages of development in a series of stained embryos. From the Wild Duck Electromagnetic Carbonic Acid Test Extravaganza II in the University of Oregon Science Library.
www.facebook.com/pages/Eugene-OR/UO-Science-Library/25048...
analysis and research || Analyse und Erforschung
Image by paraflyer