Induction in the chick by quail Hensen's node.
D000818:Animals; D002454:Cell Differentiation; D002490:Central Nervous System / Q000196:embryology; D002642:Chick Embryo / Q000033:anatomy & histology / Q000254:growth & development*; D005855:Germ Layers / Q000637:transplantation*; D009024:Morphogenesis; D011784:Quail / Q000196:embryology*; D014183:Transplantation, Heterologous