Pig
When the moon is bright, it's easy to see that a pig is indeed a pig.
Imagine walking outside at night and seeing a strange oinking animal. You think it's a pig, but just to be sure you grab that thing and hold it up to the moonlight. Yes, definitely a pig! Now you know.
とん
ぶた
None
Legend has it that if you catch a pig in moonlight, it will tell you its secrets. Sure enough, this pig tells you it's from Bhutan (ぶた).
A pig from Bhutan?! Yes, all pigs are actually from Bhutan, it whispers. Then this Bhutan pig escapes your grip and trots off into the moonlight.