Haeckel's embryos.
Hanken
J
J
Richardson
M K
MK
D000818:Animals; D004622:Embryo, Mammalian / Q000033:anatomy & histology*; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology*; D014714:Vertebrates / Q000033:anatomy & histology / Q000196:embryology*