Season 3, Episode 12 (52 overall)
Monday, April 10, 2000
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Sarah Scientist's Laboratory
1. A Mouth
2. A Wiggling Motion
3. A Tooth
Answer to Blue's Clues
Blue has a loose tooth.

Anatomy is the 12th episode of Blue's Clues from Season 3.

Characters Present


Steve and Blue learn about different parts of the body and the different uses of them.


This article needs a recap. Watch the video link below to figure out what was heard on this episode.


  • This is Mouth's first appearance without a speaking role. He later spoke in I Did That as the first talking clue and Body Language as Scrunched Up Mouth since her reappearance never had eyes.
  • In the Portugal version of Blue's Clues (Pistas da Blue), Blue's barking to the Mailtime song from Snack Time was used.
  • This is eighth and last episode where viewers say "Notebook!" from "Mailbox's Birthday" wasn't used.
  • During the theme song, Steve is wearing his tan shoes.
  • In Pistas da Blue version of this episode. During the scene where Durate helps Mr. Salt, Mrs. Pepper and Paprika with muscles and finding the third clue. His hair from late Season 3 is used.
  • In the UK Version when Kevin asks Postbox why he is blinking his voice tone makes him look and sound like he's angry.
  • When Steve dances the pawprint away, the music from the song Our Dream from What Was Blue's Dream About? was used.
  • During the credits, you can hear a woman from the first clue singing.
    • Curser can also be seen near both the beginning and end of the credits, clicking at Steve's name and SFX, Music and Post Mixer.
  • Although not acknowledged fully, this is the first time the Internet is used to learn about something.
  • This episode was seen in the TV show, Yes Dear, as an emergency use. This lead to one of the main characters hallucinating to being on the Blue's Clues show himself. That same episode even had Steve guest star at the very end.


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Blue's Clues Season 3
Blue's Big Treasure Hunt | Art Appreciation | Weight and Balance | What's That Sound? | Animal Behavior! | Blue's Big Pajama Party | Draw Along with Blue | Thankful | Blue's Big Holiday | Pool Party | Anatomy | Signs | Nature | Geography | Occupations | Blue's Big Mystery | Periwinkle Misses His Friend | Blue's Big Musical | What's So Funny? | Blue's Big Costume Party | Inventions | Blue's Play | Prehistoric Blue | The Wrong Shirt | Words | Blue's Collection | Café Blue | Shy | Environments | Stormy Weather | Magenta Gets Glasses