The postnatal development of behavioral states in the rat.
D000818:Animals; D000830:Animals, Laboratory; D000831:Animals, Newborn / Q000254:growth & development*; D001522:Behavior, Animal; D001835:Body Weight; D001921:Brain / Q000254:growth & development; D002940:Circadian Rhythm; D005260:Female; D006799:Housing, Animal; D008124:Locomotion; D008297:Male; D051381:Rats / Q000254:growth & development*; D013216:Reflex, Startle; D012890:Sleep; D014851:Wakefulness