Haeckel's embryos, continued.
Richardson
M K
MK
D000716:Anatomy, Artistic / Q000266:history*; D000818:Animals; D005075:Biological Evolution; D004622:Embryo, Mammalian / Q000033:anatomy & histology*; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology; D049672:History, 19th Century; D008488:Medical Illustration / Q000266:history*