One has to wonder if the writers and/or producers of the much-later GREMLINS saw this comic book tearjerker when they were kids. Superman gets a pet that's an overdose of cute but ever once in awhile he becomes a destructive monster! The ending can still make a grown man weep.
Reprints were rare in comics before the sixties but became a major factor at DC--and later Marvel after they had enough stuff to reprint.
Cave Carson, like Space Ranger before him, wouldn't last but most everything else DC touched by this point turned to gold.