Science 5 September 1997: 
Vol. 277 no. 5331 p. 1435 
DOI: 10.1126/science.277.5331.1435a

• RESEARCH NEWS

DEVELOPMENTAL BIOLOGY

Haeckel's Embryos: Fraud Rediscovered

1. Elizabeth Pennisi

Using modern techniques, a British researcher has photographed embryos like those pictured in the famous, century-old drawings by Ernst Haeckel--proving that Haeckel's images were falsified. Haeckel once admitted to his peers that he doctored the drawings, but that confession was forgotten.

you have to subscribe to read the whole article. I read about this once before. This is where you 

get the idea that embryos go through all stages of evolution before becoming whatever they

are born as. http://www.sciencemag.org/content/277/5331/1435.1.summary