Baby Child

Emma:  Awww, it's a baby lamb.
Carina:  It's a baby sheep Emma.  Baby lamb is redundant.  It's a baby sheep or a lamb.
Emma:  (after a pause) It's a baby lamb.
Carina:  Emma, it's either a lamb or a baby sheep.  It's not both.  That's like saying it's a baby child.
Emma:  Awww, it's a baby child!