Experimental studies on hatching behavior in the chick. 3. The role of the midbrain and forebrain.
D000367:Age Factors; D000818:Animals; D001522:Behavior, Animal; D002642:Chick Embryo / Q000254:growth & development / Q000502:physiology*; D004027:Diencephalon / Q000502:physiology*; D008636:Mesencephalon / Q000502:physiology*; D009043:Motor Activity; D009048:Motor Skills; D013687:Telencephalon / Q000502:physiology*